TEDS Data Dictionary

Variables in the 16 Year Dataset

The table on this page lists all 16 Year variables. This includes all item variables from the 16 Year booklets, questionnaires and web tests, as well as derived variables that are based on 16 Year items.

The table does not include background variables that originate from other sources (either from admin data or from other study datasets). Such variables include IDs, twin sex and zygosity variables, the random variable and general exclusion variables. See the background variables page for details.

Variables are listed in alphabetical order in the table below. The columns of the table are:

  • Dataset variable name.
  • Item or derived variable?
  • Source of data:
    • child web - from the twin web study activities
    • child qnr - from the twin behaviour/leap study booklet
    • child leap2 - from the twin leap-2 study booklet
    • child exam - from the twin examination results (GCSE and other)
    • parent web - from the parent web study consent/SES questionnaire
    • parent qnr - from the parent behaviour/leap study booklet
    • parent leap2 - from the parent leap-2 study booklet
    • admin - administrative data, logged in the TEDS admin database
  • Dataset variable label
  • Data type:
    • integer - numeric whole numbers
    • decimal - numeric with fractional values
    • string - alphanumeric character strings
  • Variable type:
    • nominal - categorical, with arbitrary values
    • ordinal - categorical, with ordered numeric values
    • quantitative - numerical measurements of some concrete quantity
    • scale value - numerical measurement derived (usually) as a sum or mean of other variables
    In some cases, these distinctions are arbitrary. Binary variables are categorized as ordinal if they are scores (0/1), and nominal otherwise.
  • Coding or range of values - this shows the value coding used for nominal/ordinal variables, or an approximate range of values for quantitative and scale variables.
dataset variable namedataset variable labelitem or derived variable?source of datadata typevariable typecoding or approximate range of values
p16yearAny 16 Year study data present, 1Y 0Nderived -integernominal0=no, 1=yes
pcambim1/2Ambition overall mean score (child web at 16), 1-5 derivedchild webdecimalscale value1 to 5
pcatscm1/2PISA Attitudes to School overall mean score (child web at 16), 1-4derivedchild webdecimal scale value1 to 4
pcattaalt1/2Attachment Alienation scale (child web at 16), 0-28 derivedchild webdecimalscale value0 to 28
pcattacot1/2Attachment Communication scale (child web at 16), 0-32derivedchild webdecimalscale value 0 to 32
pcattat1/2Attachment total scale (child web at 16), 0-100 derivedchild webdecimalscale value0 to 100
pcattatrt1/2Attachment Trust scale (child web at 16), 0-40 derivedchild webdecimalscale value0 to 40
pcbhage1/2Age of twin on return of behaviour study child booklet at 16derivedadmindecimal quantitativeapprox. 16.5-17.5 years old
pcbhalco11/2Alcohol item 1, ever drunk alcohol (child behaviour qnr at 16, not cohort 1), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhalco21/2Alcohol item 2, estimated total units consumed last month (child behaviour qnr at 16, not cohort 1), number of unitsderived child qnrintegerquantitativeapprox. 0 to 200 (units)
pcbhalco31/2Alcohol item 3, how often drink alcohol (child behaviour qnr at 16, not cohort 1), see value labels itemchild qnrintegerordinal0=never, 1=monthly or less, 2=2-4 times a month, 3=2-3 times a week, 4=4 or more times a week
pcbhalco41/2Alcohol item 4, units of alcohol (child behaviour qnr at 16, not cohort 1), see value labelsitemchild qnrintegerordinal1=1 or 2, 2=3 or 4, 3=5 or 6, 4=7 8 or 9, 5=10 or more
pcbhalco51/2Alcohol item 5, six or more units of alcohol (child behaviour qnr at 16, not cohort 1), see value labelsitem child qnrintegerordinal0=never, 1=less than monthly, 2=monthly, 3=weekly or more
pcbhanhd11/2Introvertive Anhedonia item 1, few things enjoyed doing (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhanhd21/2Introvertive Anhedonia item 2, too independent (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhanhd31/2Introvertive Anhedonia item 3, feel close to friends (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhanhd3r1/2Reversed version of Introvertive Anhedonia item 3 (child behaviour qnr at 16)itemchild qnrinteger nominal0=no, 1=yes
pcbhanhd41/2Introvertive Anhedonia item 4, dancing seemed dull (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhanhd51/2Introvertive Anhedonia item 5, trying new foods (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhanhd5r1/2Reversed version of Introvertive Anhedonia item 5 (child behaviour qnr at 16)itemchild qnrinteger nominal0=no, 1=yes
pcbhanhd61/2Introvertive Anhedonia item 6, uncomfortable when touched (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhanhd71/2Introvertive Anhedonia item 7, prefer watching television (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhanhdt1/2Introvertive Anhedonia total scale (child behaviour qnr at 16), 0-7derivedchild qnrdecimal scale value0 to 7
pcbhaq011/2Autism Quotient item 1, do things with others (child behaviour qnr at 16), 0=definitely disagree .. 3=definitely agree itemchild qnrintegerordinal0=definitely disagree, 1=slightly disagree, 2=slightly agree, 3=definitely agree
pcbhaq01r1/2Reversed version of Autism Quotient item 1 (child behaviour qnr at 16)itemchild qnrinteger ordinal0=definitely agree, 1=slightly agree, 2=slightly disagree, 3=definitely disagree
pcbhaq021/2Autism Quotient item 2, social situations easy (child behaviour qnr at 16), 0=definitely disagree .. 3=definitely agree itemchild qnrintegerordinal0=definitely disagree, 1=slightly disagree, 2=slightly agree, 3=definitely agree
pcbhaq02r1/2Reversed version of Autism Quotient item 2 (child behaviour qnr at 16)itemchild qnrinteger ordinal0=definitely agree, 1=slightly agree, 2=slightly disagree, 3=definitely disagree
pcbhaq031/2Autism Quotient item 3, rather go to library (child behaviour qnr at 16), 0=definitely disagree .. 3=definitely agree itemchild qnrintegerordinal0=definitely disagree, 1=slightly disagree, 2=slightly agree, 3=definitely agree
pcbhaq041/2Autism Quotient item 4, drawn more to people (child behaviour qnr at 16), 0=definitely disagree .. 3=definitely agree itemchild qnrintegerordinal0=definitely disagree, 1=slightly disagree, 2=slightly agree, 3=definitely agree
pcbhaq04r1/2Reversed version of Autism Quotient item 4 (child behaviour qnr at 16)itemchild qnrinteger ordinal0=definitely agree, 1=slightly agree, 2=slightly disagree, 3=definitely disagree
pcbhaq051/2Autism Quotient item 5, hard to make new friends (child behaviour qnr at 16), 0=definitely disagree .. 3=definitely agree itemchild qnrintegerordinal0=definitely disagree, 1=slightly disagree, 2=slightly agree, 3=definitely agree
pcbhaq061/2Autism Quotient item 6, enjoy social occasions (child behaviour qnr at 16), 0=definitely disagree .. 3=definitely agree itemchild qnrintegerordinal0=definitely disagree, 1=slightly disagree, 2=slightly agree, 3=definitely agree
pcbhaq06r1/2Reversed version of Autism Quotient item 6 (child behaviour qnr at 16)itemchild qnrinteger ordinal0=definitely agree, 1=slightly agree, 2=slightly disagree, 3=definitely disagree
pcbhaq071/2Autism Quotient item 7, enjoy meeting people (child behaviour qnr at 16), 0=definitely disagree .. 3=definitely agree itemchild qnrintegerordinal0=definitely disagree, 1=slightly disagree, 2=slightly agree, 3=definitely agree
pcbhaq07r1/2Reversed version of Autism Quotient item 7 (child behaviour qnr at 16)itemchild qnrinteger ordinal0=definitely agree, 1=slightly agree, 2=slightly disagree, 3=definitely disagree
pcbhaq081/2Autism Quotient item 8, anxious in new situations (child behaviour qnr at 16), 0=definitely disagree .. 3=definitely agree itemchild qnrintegerordinal0=definitely disagree, 1=slightly disagree, 2=slightly agree, 3=definitely agree
pcbhaq091/2Autism Quotient item 9, notice car number plates (child behaviour qnr at 16), 0=definitely disagree .. 3=definitely agree itemchild qnrintegerordinal0=definitely disagree, 1=slightly disagree, 2=slightly agree, 3=definitely agree
pcbhaq101/2Autism Quotient item 10, fascinated by dates (child behaviour qnr at 16), 0=definitely disagree .. 3=definitely agree itemchild qnrintegerordinal0=definitely disagree, 1=slightly disagree, 2=slightly agree, 3=definitely agree
pcbhaq111/2Autism Quotient item 11, fascinated by numbers (child behaviour qnr at 16), 0=definitely disagree .. 3=definitely agree itemchild qnrintegerordinal0=definitely disagree, 1=slightly disagree, 2=slightly agree, 3=definitely agree
pcbhaq121/2Autism Quotient item 12, notice patterns (child behaviour qnr at 16), 0=definitely disagree .. 3=definitely agree itemchild qnrintegerordinal0=definitely disagree, 1=slightly disagree, 2=slightly agree, 3=definitely agree
pcbhaq131/2Autism Quotient item 13, collect information (child behaviour qnr at 16), 0=definitely disagree .. 3=definitely agree itemchild qnrintegerordinal0=definitely disagree, 1=slightly disagree, 2=slightly agree, 3=definitely agree
pcbhaqdett1/2Autism Quotient Attention to Detail scale (child behaviour qnr at 16), 0-15derivedchild qnrdecimal scale value0 to 15
pcbhaqsoct1/2Autism Quotient Social scale (child behaviour qnr at 16), 0-24derivedchild qnrdecimalscale value0 to 24
pcbhaqt1/2Autism Quotient total scale (child behaviour qnr at 16), 0-39derivedchild qnrdecimalscale value0 to 39
pcbhcann011/2Cannabis item 1, ever tried cannabis (child behaviour qnr at 16, not cohort 1), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhcann021/2Cannabis item 2, cannabis habit (child behaviour qnr at 16, not cohort 1), see value labelsitem child qnrintegernominal1=tried once or twice, 2=used to but not now, 3=less than once a week, 4=1-6 times a week, 5=every day
pcbhcann031/2Cannabis item 3, age first tried cannabis (child behaviour qnr at 16, not cohort 1), see value labelsitem child qnrintegerordinal1=14 or less, 2=15-16, 3=17+ years old (years old)
pcbhcann041/2Cannabis item 4, cannabis used total (child behaviour qnr at 16, not cohort 1), see value labelsitem child qnrintegerordinal1=less than 5, 2=5-19, 3=20-49, 4=50-99, 5=100 or more
pcbhcann06a1/2Cannabis item 6a, cannabis: sick or sweaty (child behaviour qnr at 16, not cohort 1), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhcann06b1/2Cannabis item 6b, cannabis: calm and relaxed (child behaviour qnr at 16, not cohort 1), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhcann06c1/2Cannabis item 6c, cannabis: anxious or panicky(child behaviour qnr at 16, not cohort 1), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhcann06d1/2Cannabis item 6d, cannabis: spying or harm (child behaviour qnr at 16, not cohort 1), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhcann06e1/2Cannabis item 6e, cannabis: want to laugh (child behaviour qnr at 16, not cohort 1), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhcann06f1/2Cannabis item 6f, cannabis: hearing voices (child behaviour qnr at 16, not cohort 1), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhcann06g1/2Cannabis item 6g, cannabis: seeing things (child behaviour qnr at 16, not cohort 1), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhcann06h1/2Cannabis item 6h, cannabis: sociable and friendly (child behaviour qnr at 16, not cohort 1), 1Y 0Nitemchild qnrintegernominal0=no, 1=yes
pcbhcann071/2Cannabis item 7, cannabis last 12 months (child behaviour qnr at 16, not cohort 1), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhcann081/2Cannabis item 8, cannabis: before midday (child behaviour qnr at 16, not cohort 1), see value labelsitem child qnrintegerordinal0=never, 1=rarely, 2=from time to time, 3=often
pcbhcann091/2Cannabis item 9, cannabis: alone (child behaviour qnr at 16, not cohort 1), see value labelsitemchild qnr integerordinal0=never, 1=rarely, 2=from time to time, 3=often
pcbhcann101/2Cannabis item 10, cannabis: memory problems (child behaviour qnr at 16, not cohort 1), see value labelsitem child qnrintegerordinal0=never, 1=rarely, 2=from time to time, 3=often
pcbhcann111/2Cannabis item 11, cannabis: told to reduce use (child behaviour qnr at 16, not cohort 1), see value labelsitem child qnrintegerordinal0=never, 1=rarely, 2=from time to time, 3=often
pcbhcann121/2Cannabis item 12, cannabis: tried and failed to reduce (child behaviour qnr at 16, not cohort 1), see value labels itemchild qnrintegerordinal0=never, 1=rarely, 2=from time to time, 3=often
pcbhcann131/2Cannabis item 13, cannabis: problems because of use (child behaviour qnr at 16, not cohort 1), see value labels itemchild qnrintegerordinal0=never, 1=rarely, 2=from time to time, 3=often
pcbhcaps11/2CAPS item 1, hear noises (child behaviour qnr at 16), 0=not at all .. 5=dailyitemchild qnrinteger ordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcbhcaps21/2CAPS item 2, someone touching (child behaviour qnr at 16), 0=not at all .. 5=dailyitemchild qnr integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcbhcaps31/2CAPS item 3, hear sounds or music (child behaviour qnr at 16), 0=not at all .. 5=dailyitemchild qnr integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcbhcaps41/2CAPS item 4, detect smells (child behaviour qnr at 16), 0=not at all .. 5=dailyitemchild qnrinteger ordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcbhcaps51/2CAPS item 5, see things (child behaviour qnr at 16), 0=not at all .. 5=dailyitemchild qnrinteger ordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcbhcaps61/2CAPS item 6, unusual burning sensations (child behaviour qnr at 16), 0=not at all .. 5=dailyitemchild qnr integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcbhcaps71/2CAPS item 7, see shapes (child behaviour qnr at 16), 0=not at all .. 5=dailyitemchild qnrinteger ordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcbhcaps81/2CAPS item 8, hear voices commenting (child behaviour qnr at 16), 0=not at all .. 5=dailyitemchild qnr integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcbhcaps91/2CAPS item 9, notice smells or odours (child behaviour qnr at 16), 0=not at all .. 5=dailyitemchild qnr integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcbhcapst1/2CAPS total scale (child behaviour qnr at 16), 0-45 derivedchild qnrdecimalscale value0 to 45
pcbhcasi011/2Childhood Anxiety Sensitivity Index item 1, do not want others to know (child behaviour qnr at 16), 0=not 1=quite 2=very true itemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhcasi021/2Childhood Anxiety Sensitivity Index item 2, going crazy (child behaviour qnr at 16), 0=not 1=quite 2=very trueitem child qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhcasi031/2Childhood Anxiety Sensitivity Index item 3, feel shaky (child behaviour qnr at 16), 0=not 1=quite 2=very trueitem child qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhcasi041/2Childhood Anxiety Sensitivity Index item 4, going to faint (child behaviour qnr at 16), 0=not 1=quite 2=very trueitem child qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhcasi051/2Childhood Anxiety Sensitivity Index item 5, stay in control (child behaviour qnr at 16), 0=not 1=quite 2=very true itemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhcasi061/2Childhood Anxiety Sensitivity Index item 6, scares me when heart beats (child behaviour qnr at 16), 0=not 1=quite 2=very true itemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhcasi071/2Childhood Anxiety Sensitivity Index item 7, stomach rumbles (child behaviour qnr at 16), 0=not 1=quite 2=very true itemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhcasi081/2Childhood Anxiety Sensitivity Index item 8, throw up (child behaviour qnr at 16), 0=not 1=quite 2=very trueitem child qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhcasi091/2Childhood Anxiety Sensitivity Index item 9, notice heart beating fast (child behaviour qnr at 16), 0=not 1=quite 2=very true itemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhcasi101/2Childhood Anxiety Sensitivity Index item 10, getting my breath (child behaviour qnr at 16), 0=not 1=quite 2=very true itemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhcasi111/2Childhood Anxiety Sensitivity Index item 11, stomach hurts (child behaviour qnr at 16), 0=not 1=quite 2=very true itemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhcasi121/2Childhood Anxiety Sensitivity Index item 12, cannot concentrate (child behaviour qnr at 16), 0=not 1=quite 2=very true itemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhcasi131/2Childhood Anxiety Sensitivity Index item 13, others my age can tell (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal 0=not true, 1=quite true, 2=very true
pcbhcasi141/2Childhood Anxiety Sensitivity Index item 14, unusual feelings (child behaviour qnr at 16), 0=not 1=quite 2=very true itemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhcasi151/2Childhood Anxiety Sensitivity Index item 15, when I am afraid (child behaviour qnr at 16), 0=not 1=quite 2=very true itemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhcasi161/2Childhood Anxiety Sensitivity Index item 16, scared when feel nervous (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal 0=not true, 1=quite true, 2=very true
pcbhcasi171/2Childhood Anxiety Sensitivity Index item 17, do not like to show feelings (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal 0=not true, 1=quite true, 2=very true
pcbhcasi181/2Childhood Anxiety Sensitivity Index item 18, funny feelings (child behaviour qnr at 16), 0=not 1=quite 2=very trueitem child qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhcasit1/2CASI Anxiety total scale (child behaviour qnr at 16), 0-36derivedchild qnrdecimalscale value0 to 36
pcbhcgds011/2Cognitive Disorganisation item 1, easily confused (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhcgds021/2Cognitive Disorganisation item 2, difficulty starting (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhcgds031/2Cognitive Disorganisation item 3, mood goes up and down (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhcgds041/2Cognitive Disorganisation item 4, dread going into a room (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhcgds051/2Cognitive Disorganisation item 5, difficult to keep interested (child behaviour qnr at 16), 1Y 0Nitem child qnrintegernominal0=no, 1=yes
pcbhcgds061/2Cognitive Disorganisation item 6, difficulties controlling (child behaviour qnr at 16), 1Y 0Nitemchild qnrintegernominal0=no, 1=yes
pcbhcgds071/2Cognitive Disorganisation item 7, distracted by daydreams (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhcgds081/2Cognitive Disorganisation item 8, speech difficult to understand (child behaviour qnr at 16), 1Y 0Nitemchild qnrintegernominal0=no, 1=yes
pcbhcgds091/2Cognitive Disorganisation item 9, distracted when you read (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhcgds101/2Cognitive Disorganisation item 10, hard to make decisions (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhcgds111/2Cognitive Disorganisation item 11, difficulty following conversation (child behaviour qnr at 16), 1Y 0Nitem child qnrintegernominal0=no, 1=yes
pcbhcgdst1/2Cognitive Disorganisation total scale (child behaviour qnr at 16), 0-11derivedchild qnrdecimal scale value0 to 11
pcbhdata1/2Child behaviour booklet data present at 16, 1Y 0N itemchild qnrintegernominal0=no, 1=yes
pcbhdistr11/2Distress item 1, after Paranoid Checklist (child behaviour qnr at 16, not cohort 1), 0=not .. 3=very distresseditem child qnrintegerordinal0=not distressed, 1=a bit distressed, 2=quite distressed, 3=very distressed
pcbhdistr21/2Distress item 2, after CAPS (child behaviour qnr at 16, not cohort 1), 0=not .. 3=very distresseditemchild qnrintegerordinal0=not distressed, 1=a bit distressed, 2=quite distressed, 3=very distressed
pcbhdistr31/2Distress item 3, after Grandiosity (child behaviour qnr at 16, not cohort 1), 0=not .. 3=very distresseditem child qnrintegerordinal0=not distressed, 1=a bit distressed, 2=quite distressed, 3=very distressed
pcbhdistr41/2Distress item 4, after Cognitive Disorganisation (child behaviour qnr at 16, not cohort 1), 0=not .. 3=very distressed itemchild qnrintegerordinal0=not distressed, 1=a bit distressed, 2=quite distressed, 3=very distressed
pcbhdlnq1a1/2Delinquency item 1, stolen something (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhdlnq1b1/2Delinquency item 1, stolen something (child behaviour qnr at 16), see value labelsitem child qnrintegerordinal1=less than 5, 2=6-7, 3=8-9, 4=10-11, 5=12-13, 6=14-15, 7=16+
pcbhdlnq1c1/2Delinquency item 1, stolen something (child behaviour qnr at 16), see value labelsitem child qnrintegerordinal1=once, 2=2-4, 3=5-10, 4=11+ times
pcbhdlnq2a1/2Delinquency item 2, run away (child behaviour qnr at 16), 1Y 0Nitemchild qnrintegernominal 0=no, 1=yes
pcbhdlnq2b1/2Delinquency item 2, run away (child behaviour qnr at 16), see value labelsitemchild qnr integerordinal1=less than 5, 2=6-7, 3=8-9, 4=10-11, 5=12-13, 6=14-15, 7=16+
pcbhdlnq2c1/2Delinquency item 2, run away (child behaviour qnr at 16), see value labelsitemchild qnr integerordinal1=once, 2=2-4, 3=5-10, 4=11+ times
pcbhdlnq3a1/2Delinquency item 3, attacked someone (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhdlnq3b1/2Delinquency item 3, attacked someone (child behaviour qnr at 16), see value labelsitem child qnrintegerordinal1=less than 5, 2=6-7, 3=8-9, 4=10-11, 5=12-13, 6=14-15, 7=16+
pcbhdlnq3c1/2Delinquency item 3, attacked someone (child behaviour qnr at 16), see value labelsitem child qnrintegerordinal1=once, 2=2-4, 3=5-10, 4=11+ times
pcbhdlnq4a1/2Delinquency item 4, gang fights (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhdlnq4b1/2Delinquency item 4, gang fights (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal1=less than 5, 2=6-7, 3=8-9, 4=10-11, 5=12-13, 6=14-15, 7=16+
pcbhdlnq4c1/2Delinquency item 4, gang fights (child behaviour qnr at 16), see value labelsitemchild qnr integerordinal1=once, 2=2-4, 3=5-10, 4=11+ times
pcbhdlnq5a1/2Delinquency item 5, hit parent (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhdlnq5b1/2Delinquency item 5, hit parent (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal1=less than 5, 2=6-7, 3=8-9, 4=10-11, 5=12-13, 6=14-15, 7=16+
pcbhdlnq5c1/2Delinquency item 5, hit parent (child behaviour qnr at 16), see value labelsitemchild qnr integerordinal1=once, 2=2-4, 3=5-10, 4=11+ times
pcbhdlnq6a1/2Delinquency item 6, unruly in public (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhdlnq6b1/2Delinquency item 6, unruly in public (child behaviour qnr at 16), see value labelsitem child qnrintegerordinal1=less than 5, 2=6-7, 3=8-9, 4=10-11, 5=12-13, 6=14-15, 7=16+
pcbhdlnq6c1/2Delinquency item 6, unruly in public (child behaviour qnr at 16), see value labelsitem child qnrintegerordinal1=once, 2=2-4, 3=5-10, 4=11+ times
pcbhdlnqt1/2Delinquency: number of delinquent behaviours reported (child behaviour qnr at 16, cohort 1 only), 0-8derived child qnrintegerordinal0 to 8
pcbhdrug25a1/2Drug item 25a, sniffing: aerosols (child behaviour qnr at 16, not cohort 1), 1Y 0N itemchild qnrintegerordinal0=no, 1=yes
pcbhdrug25b1/2Drug item 25b, sniffing: gas (child behaviour qnr at 16, not cohort 1), 1Y 0Nitem child qnrintegerordinal0=no, 1=yes
pcbhdrug25c1/2Drug item 25c, sniffing: glue (child behaviour qnr at 16, not cohort 1), 1Y 0Nitem child qnrintegerordinal0=no, 1=yes
pcbhdrug25d1/2Drug item 25d, sniffing: solvents (child behaviour qnr at 16, not cohort 1), 1Y 0N itemchild qnrintegerordinal0=no, 1=yes
pcbhdrug25e1/2Drug item 25e, sniffing: poppers (child behaviour qnr at 16, not cohort 1), 1Y 0Nitem child qnrintegerordinal0=no, 1=yes
pcbhdrug26a1/2Drug item 26a, drugs tried: amphetamines (child behaviour qnr at 16, not cohort 1), 1Y 0N itemchild qnrintegerordinal0=no, 1=yes
pcbhdrug26b1/2Drug item 26b, drugs tried: ecstasy (child behaviour qnr at 16, not cohort 1), 1Y 0N itemchild qnrintegerordinal0=no, 1=yes
pcbhdrug26c1/2Drug item 26c, drugs tried: LSD (child behaviour qnr at 16, not cohort 1), 1Y 0Nitem child qnrintegerordinal0=no, 1=yes
pcbhdrug26d1/2Drug item 26d, drugs tried: mushrooms (child behaviour qnr at 16, not cohort 1), 1Y 0N itemchild qnrintegerordinal0=no, 1=yes
pcbhdrug26e1/2Drug item 26e, drugs tried: cocaine (child behaviour qnr at 16, not cohort 1), 1Y 0N itemchild qnrintegerordinal0=no, 1=yes
pcbhdrug26h1/2Drug item 26h, drugs tried: ketamine (child behaviour qnr at 16, not cohort 1), 1Y 0N itemchild qnrintegerordinal0=no, 1=yes
pcbhedds11/2EDDS item 1, felt fat (child behaviour qnr at 16), see value labelsitem child qnrintegernominal1=not at all, 2, 3=slightly, 4, 5=moderately, 6, 7=extremely
pcbhedds21/2EDDS item 2, fear of gaining weight (child behaviour qnr at 16), see value labels itemchild qnrintegernominal1=not at all, 2, 3=slightly, 4, 5=moderately, 6, 7=extremely
pcbhedds31/2EDDS item 3, weight influenced you (child behaviour qnr at 16), see value labelsitem child qnrintegernominal1=not at all, 2, 3=slightly, 4, 5=moderately, 6, 7=extremely
pcbhedds41/2EDDS item 4, shape influenced you (child behaviour qnr at 16), see value labelsitem child qnrintegernominal1=not at all, 2, 3=slightly, 4, 5=moderately, 6, 7=extremely
pcbheddsm1/2EDDS overall mean score (child behaviour qnr at 16), 1-7derivedchild qnrdecimalscale value1 to 7
pcbhfcbk11/2Facebook item 1, do you have an account (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhfcbk21/2Facebook item 2, how long had account for (child behaviour qnr at 16), 1=less than a month .. 5=five years or more itemchild qnrintegerordinal1=less than one month, 2=one-six months, 3=six months-one year, 4=two-four years, 5=five years or more
pcbhfcbk3a1/2Facebook item 3, use for: message (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhfcbk3b1/2Facebook item 3, use for: wall posts (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhfcbk3c1/2Facebook item 3, use for: chat (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhfcbk3d1/2Facebook item 3, use for: share photos (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhfcbk3e1/2Facebook item 3, use for: meeting people (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhfcbk3f1/2Facebook item 3, use for: organising events (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhfcbk3g1/2Facebook item 3, use for: places (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhfcbk3h1/2Facebook item 3, use for: playing games (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhfcbk41/2Facebook item 4, how often check updates (child behaviour qnr at 16), 1=3/4 times a day .. 7=less than monthlyitem child qnrintegerordinal1=three times or more per day, 2=twice a day, 3=once a day, 4=a couple of times a week, 5=one a week, 6=once a month, 7=less than once a month
pcbhfcbk51/2Facebook item 5, how much time per week (child behaviour qnr at 16), 1=less than 30 mins .. 6=20 hours or moreitem child qnrintegerordinal1=less than 30 min, 2=30 min to 1 hour, 3=1-5 hours, 4=5-10 hours, 5=10-20 hours, 6=20 hours or more
pcbhfcbk61/2Facebook item 6, how many friends (child behaviour qnr at 16), see value labelsitemchild qnrinteger ordinal1=less than 50, 2=50-99, 3=100-199, 4=200-299, 5=300-499, 6=500-699, 7=700-999, 8=1000-1499, 9=1500 or higher
pcbhfcbk7a1/2Facebook item 7, where: bedroom (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhfcbk7b1/2Facebook item 7, where: elsewhere at home (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhfcbk7c1/2Facebook item 7, where: school (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhfcbk7d1/2Facebook item 7, where: library (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhfcbk7e1/2Facebook item 7, where: friend house (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhfcbk7f1/2Facebook item 7, where: mobile (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhfcbk7g1/2Facebook item 7, where: ipad (child behaviour qnr at 16), 1Y 0Nitemchild qnrintegernominal 0=no, 1=yes
pcbhfcbk8a1/2Facebook item 8, other sites: myspace (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhfcbk8b1/2Facebook item 8, other sites: bebo (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhfcbk8c1/2Facebook item 8, other sites: twitter (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhfcbk8d1/2Facebook item 8, other sites: piczo (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhfcbk8e1/2Facebook item 8, other sites: blogger (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhfcbk8f1/2Facebook item 8, other sites: other (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhfcbk8g1/2Facebook item 8, other sites: none (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhfcbk91/2Facebook item 9, twitter account (child behaviour qnr at 16, not cohort 1), 1Y 0Nitem child qnrintegernominal0=no account, 1=twitter account username supplied
pcbhgrnd11/2Grandiosity and Delusion item 1, special mission (child behaviour qnr at 16), 0=not at all .. 3=completelyitem child qnrintegerordinal0=not at all, 1=somewhat, 2=a great deal, 3=completely
pcbhgrnd21/2Grandiosity and Delusion item 2, great ideas (child behaviour qnr at 16), 0=not at all .. 3=completelyitem child qnrintegerordinal0=not at all, 1=somewhat, 2=a great deal, 3=completely
pcbhgrnd31/2Grandiosity and Delusion item 3, everything I do is great (child behaviour qnr at 16), 0=not at all .. 3=completelyitem child qnrintegerordinal0=not at all, 1=somewhat, 2=a great deal, 3=completely
pcbhgrnd41/2Grandiosity and Delusion item 4, someone very important (child behaviour qnr at 16), 0=not at all .. 3=completely itemchild qnrintegerordinal0=not at all, 1=somewhat, 2=a great deal, 3=completely
pcbhgrnd51/2Grandiosity and Delusion item 5, very special person (child behaviour qnr at 16), 0=not at all .. 3=completely itemchild qnrintegerordinal0=not at all, 1=somewhat, 2=a great deal, 3=completely
pcbhgrnd61/2Grandiosity and Delusion item 6, special abilities (child behaviour qnr at 16), 0=not at all .. 3=completelyitem child qnrintegerordinal0=not at all, 1=somewhat, 2=a great deal, 3=completely
pcbhgrnd71/2Grandiosity and Delusion item 7, more unique (child behaviour qnr at 16), 0=not at all .. 3=completelyitem child qnrintegerordinal0=not at all, 1=somewhat, 2=a great deal, 3=completely
pcbhgrnd81/2Grandiosity and Delusion item 8, everyone will know about me (child behaviour qnr at 16), 0=not at all .. 3=completely itemchild qnrintegerordinal0=not at all, 1=somewhat, 2=a great deal, 3=completely
pcbhgrndt1/2Grandiosity and Delusion total scale (child behaviour qnr at 16), 0-24derivedchild qnrdecimal scale value0 to 24
pcbhhand11/2Handedness item 1, I am (child behaviour qnr at 16), 1=left 2=right 3=mixed handeditemchild qnr integernominal1=left handed, 2=right handed, 3=mixed handed
pcbhhand21/2Handedness item 2, when writing I use (child behaviour qnr at 16), 1=left 2=right 3=mixed handitemchild qnrintegernominal1=left handed, 2=right handed, 3=mixed handed
pcbhicut011/2Inventory of Callous-Unemotional Traits item 1, express feelings openly (child behaviour qnr at 16), 0=not at all .. 3=definitely trueitemchild qnrinteger ordinal0=not at all true, 1=somewhat true, 2=quite true, 3=definitely true
pcbhicut01r1/2Reversed version of Inventory of Callous-Unemotional Traits item 1 (child behaviour qnr at 16)item child qnrintegerordinal0=definitely true, 1=quite true, 2=somewhat true, 3=not at all true
pcbhicut021/2Inventory of Callous-Unemotional Traits item 2, do not know right from wrong (child behaviour qnr at 16), 0=not at all .. 3=definitely trueitemchild qnrinteger ordinal0=not at all true, 1=somewhat true, 2=quite true, 3=definitely true
pcbhicut031/2Inventory of Callous-Unemotional Traits item 3, care about work (child behaviour qnr at 16), 0=not at all .. 3=definitely trueitemchild qnrintegerordinal 0=not at all true, 1=somewhat true, 2=quite true, 3=definitely true
pcbhicut03r1/2Reversed version of Inventory of Callous-Unemotional Traits item 3 (child behaviour qnr at 16)item child qnrintegerordinal0=definitely true, 1=quite true, 2=somewhat true, 3=not at all true
pcbhicut041/2Inventory of Callous-Unemotional Traits item 4, do not care who I hurt (child behaviour qnr at 16), 0=not at all .. 3=definitely trueitemchild qnrinteger ordinal0=not at all true, 1=somewhat true, 2=quite true, 3=definitely true
pcbhicut051/2Inventory of Callous-Unemotional Traits item 5, feel bad or guilty (child behaviour qnr at 16), 0=not at all .. 3=definitely trueitemchild qnrintegerordinal 0=not at all true, 1=somewhat true, 2=quite true, 3=definitely true
pcbhicut05r1/2Reversed version of Inventory of Callous-Unemotional Traits item 5 (child behaviour qnr at 16)item child qnrintegerordinal0=definitely true, 1=quite true, 2=somewhat true, 3=not at all true
pcbhicut061/2Inventory of Callous-Unemotional Traits item 6, do not show emotions (child behaviour qnr at 16), 0=not at all .. 3=definitely trueitemchild qnrintegerordinal 0=not at all true, 1=somewhat true, 2=quite true, 3=definitely true
pcbhicut071/2Inventory of Callous-Unemotional Traits item 7, do not care being on time (child behaviour qnr at 16), 0=not at all .. 3=definitely trueitemchild qnrinteger ordinal0=not at all true, 1=somewhat true, 2=quite true, 3=definitely true
pcbhicut081/2Inventory of Callous-Unemotional Traits item 8, concerned about feelings (child behaviour qnr at 16), 0=not at all .. 3=definitely trueitemchild qnrinteger ordinal0=not at all true, 1=somewhat true, 2=quite true, 3=definitely true
pcbhicut08r1/2Reversed version of Inventory of Callous-Unemotional Traits item 8 (child behaviour qnr at 16)item child qnrintegerordinal0=definitely true, 1=quite true, 2=somewhat true, 3=not at all true
pcbhicut091/2Inventory of Callous-Unemotional Traits item 9, do not care if in trouble (child behaviour qnr at 16), 0=not at all .. 3=definitely trueitemchild qnrinteger ordinal0=not at all true, 1=somewhat true, 2=quite true, 3=definitely true
pcbhicut101/2Inventory of Callous-Unemotional Traits item 10, do not let feelings control (child behaviour qnr at 16), 0=not at all .. 3=definitely trueitemchild qnrinteger ordinal0=not at all true, 1=somewhat true, 2=quite true, 3=definitely true
pcbhicut111/2Inventory of Callous-Unemotional Traits item 11, do not care about doing well (child behaviour qnr at 16), 0=not at all .. 3=definitely trueitemchild qnrinteger ordinal0=not at all true, 1=somewhat true, 2=quite true, 3=definitely true
pcbhicut121/2Inventory of Callous-Unemotional Traits item 12, cold and uncaring (child behaviour qnr at 16), 0=not at all .. 3=definitely trueitemchild qnrintegerordinal 0=not at all true, 1=somewhat true, 2=quite true, 3=definitely true
pcbhicut131/2Inventory of Callous-Unemotional Traits item 13, admit to being wrong (child behaviour qnr at 16), 0=not at all .. 3=definitely trueitemchild qnrinteger ordinal0=not at all true, 1=somewhat true, 2=quite true, 3=definitely true
pcbhicut13r1/2Reversed version of Inventory of Callous-Unemotional Traits item 13 (child behaviour qnr at 16)item child qnrintegerordinal0=definitely true, 1=quite true, 2=somewhat true, 3=not at all true
pcbhicut141/2Inventory of Callous-Unemotional Traits item 14, easy to tell how feeling (child behaviour qnr at 16), 0=not at all .. 3=definitely trueitemchild qnrinteger ordinal0=not at all true, 1=somewhat true, 2=quite true, 3=definitely true
pcbhicut14r1/2Reversed version of Inventory of Callous-Unemotional Traits item 14 (child behaviour qnr at 16)item child qnrintegerordinal0=definitely true, 1=quite true, 2=somewhat true, 3=not at all true
pcbhicut151/2Inventory of Callous-Unemotional Traits item 15, always tries best (child behaviour qnr at 16), 0=not at all .. 3=definitely trueitemchild qnrintegerordinal 0=not at all true, 1=somewhat true, 2=quite true, 3=definitely true
pcbhicut15r1/2Reversed version of Inventory of Callous-Unemotional Traits item 15 (child behaviour qnr at 16)item child qnrintegerordinal0=definitely true, 1=quite true, 2=somewhat true, 3=not at all true
pcbhicut161/2Inventory of Callous-Unemotional Traits item 16, apologise to people hurt (child behaviour qnr at 16), 0=not at all .. 3=definitely trueitemchild qnrinteger ordinal0=not at all true, 1=somewhat true, 2=quite true, 3=definitely true
pcbhicut16r1/2Reversed version of Inventory of Callous-Unemotional Traits item 16 (child behaviour qnr at 16)item child qnrintegerordinal0=definitely true, 1=quite true, 2=somewhat true, 3=not at all true
pcbhicut171/2Inventory of Callous-Unemotional Traits item 17, try not to hurt feelings (child behaviour qnr at 16), 0=not at all .. 3=definitely trueitemchild qnrinteger ordinal0=not at all true, 1=somewhat true, 2=quite true, 3=definitely true
pcbhicut17r1/2Reversed version of Inventory of Callous-Unemotional Traits item 17 (child behaviour qnr at 16)item child qnrintegerordinal0=definitely true, 1=quite true, 2=somewhat true, 3=not at all true
pcbhicut181/2Inventory of Callous-Unemotional Traits item 18, do not feel remorseful (child behaviour qnr at 16), 0=not at all .. 3=definitely trueitemchild qnrinteger ordinal0=not at all true, 1=somewhat true, 2=quite true, 3=definitely true
pcbhicut191/2Inventory of Callous-Unemotional Traits item 19, expressive and emotional (child behaviour qnr at 16), 0=not at all .. 3=definitely trueitemchild qnrinteger ordinal0=not at all true, 1=somewhat true, 2=quite true, 3=definitely true
pcbhicut19r1/2Reversed version of Inventory of Callous-Unemotional Traits item 19 (child behaviour qnr at 16)item child qnrintegerordinal0=definitely true, 1=quite true, 2=somewhat true, 3=not at all true
pcbhicut201/2Inventory of Callous-Unemotional Traits item 20, do not like to put time (child behaviour qnr at 16), 0=not at all .. 3=definitely trueitemchild qnrinteger ordinal0=not at all true, 1=somewhat true, 2=quite true, 3=definitely true
pcbhicut211/2Inventory of Callous-Unemotional Traits item 21, feelings of others unimportant (child behaviour qnr at 16), 0=not at all .. 3=definitely trueitemchild qnrinteger ordinal0=not at all true, 1=somewhat true, 2=quite true, 3=definitely true
pcbhicut221/2Inventory of Callous-Unemotional Traits item 22, hide feelings (child behaviour qnr at 16), 0=not at all .. 3=definitely true itemchild qnrintegerordinal0=not at all true, 1=somewhat true, 2=quite true, 3=definitely true
pcbhicut231/2Inventory of Callous-Unemotional Traits item 23, work hard (child behaviour qnr at 16), 0=not at all .. 3=definitely true itemchild qnrintegerordinal0=not at all true, 1=somewhat true, 2=quite true, 3=definitely true
pcbhicut23r1/2Reversed version of Inventory of Callous-Unemotional Traits item 23 (child behaviour qnr at 16)item child qnrintegerordinal0=definitely true, 1=quite true, 2=somewhat true, 3=not at all true
pcbhicut241/2Inventory of Callous-Unemotional Traits item 24, make others feel good (child behaviour qnr at 16), 0=not at all .. 3=definitely trueitemchild qnrinteger ordinal0=not at all true, 1=somewhat true, 2=quite true, 3=definitely true
pcbhicut24r1/2Reversed version of Inventory of Callous-Unemotional Traits item 24 (child behaviour qnr at 16)item child qnrintegerordinal0=definitely true, 1=quite true, 2=somewhat true, 3=not at all true
pcbhicutcalt1/2ICUT Callous scale (child behaviour qnr at 16), 0-33derivedchild qnrdecimalscale value 0 to 33
pcbhicutt1/2ICUT total scale (child behaviour qnr at 16), 0-72 derivedchild qnrdecimalscale value0 to 72
pcbhicutunct1/2ICUT Uncaring scale (child behaviour qnr at 16), 0-24derivedchild qnrdecimalscale value 0 to 24
pcbhicutunet1/2ICUT Unemotional scale (child behaviour qnr at 16), 0-15derivedchild qnrdecimalscale value0 to 15
pcbhinsom11/2Insomnia item 1, difficulty falling asleep (child behaviour qnr at 16, not cohort 1), 0=none .. 4=very severeitem child qnrintegerordinal0=none, 1=mild, 2=moderate, 3=severe, 4=very severe
pcbhinsom21/2Insomnia item 2, difficulty staying awake (child behaviour qnr at 16, not cohort 1), 0=none .. 4=very severeitem child qnrintegerordinal0=none, 1=mild, 2=moderate, 3=severe, 4=very severe
pcbhinsom31/2Insomnia item 3, waking up too early (child behaviour qnr at 16, not cohort 1), 0=none .. 4=very severeitem child qnrintegerordinal0=none, 1=mild, 2=moderate, 3=severe, 4=very severe
pcbhinsom41/2Insomnia item 4, sleep pattern (child behaviour qnr at 16, not cohort 1), 0=very satisfied .. 4=very dissatisfied itemchild qnrintegerordinal 0=very satisfied, 1=satisfied, 2=moderately satisfied, 3=dissatisfied, 4=very dissatisfied
pcbhinsom51/2Insomnia item 5, noticeable problem (child behaviour qnr at 16, not cohort 1), 0=no problem .. 5=veryitem child qnrintegerordinal0=no sleep problem, 1=not at all, 2=a little, 3=somewhat, 4=much, 5=very
pcbhinsom61/2Insomnia item 6, worried about problem (child behaviour qnr at 16, not cohort 1), 0=no problem .. 5=veryitem child qnrintegerordinal0=no sleep problem, 1=not at all, 2=a little, 3=somewhat, 4=much, 5=very
pcbhinsom71/2Insomnia item 7, problem interferes (child behaviour qnr at 16, not cohort 1), 0=no problem .. 5=veryitem child qnrintegerordinal0=no sleep problem, 1=not at all, 2=a little, 3=somewhat, 4=much, 5=very
pcbhinsomt1/2Insomnia total scale (child behaviour qnr at 16, not cohort 1), 0-28derivedchild qnrdecimal scale value0 to 28
pcbhlfev01n1/2Life Events item 1, loss of parent job, negative rating (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcbhlfev02n1/2Life Events item 2, parent separation, negative rating (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcbhlfev03n1/2Life Events item 3, drugs, negative rating (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcbhlfev03p1/2Life Events item 3, drugs, positive rating (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcbhlfev04n1/2Life Events item 4, death of friend, negative rating (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcbhlfev05n1/2Life Events item 5, hospitalised, negative rating (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcbhlfev06n1/2Life Events item 6, sent away, negative rating (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcbhlfev06p1/2Life Events item 6, sent away, positive rating (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcbhlfev07n1/2Life Events item 7, breaking up, negative rating (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcbhlfev07p1/2Life Events item 7, breaking up, positive rating (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcbhlfev08n1/2Life Events item 8, sibling hospitalised, negative rating (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcbhlfev09n1/2Life Events item 9, school suspension, negative rating (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcbhlfev10n1/2Life Events item 10, failing exam, negative rating (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcbhlfev11n1/2Life Events item 11, parent remarried, negative rating (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcbhlfev11p1/2Life Events item 11, parent remarried, positive rating (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcbhlfev12n1/2Life Events item 12, parent hospitalised, negative rating (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcbhlfev14n1/2Life Events item 14, parent income decreased, negative rating (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcbhlfev15n1/2Life Events item 15, pregnancy, negative rating (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcbhlfev16n1/2Life Events item 16, achievement, negative rating (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcbhlfev16p1/2Life Events item 16, achievement, positive rating (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcbhlfev17n1/2Life Events item 17, parent arguments decreased, negative rating (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcbhlfev17p1/2Life Events item 17, parent arguments decreased, positive rating (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcbhlfev18p1/2Life Events item 18, joined church, positive rating (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcbhlfev19n1/2Life Events item 19, started dating, negative rating (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcbhlfev19p1/2Life Events item 19, started dating, positive rating (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcbhlfev20n1/2Life Events item 20, new school, negative rating (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcbhlfev20p1/2Life Events item 20, new school, positive rating (child behaviour qnr at 16), see value labelsitemchild qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcbhlfevnat1/2Life events: count of negative events that affected twin (child behaviour qnr at 16), see value labelsderivedchild qnrintegerordinal0, 1, 2, 3, 4, 5 or more
pcbhlfevnnt1/2Life events: count of negative events that occurred with no effect on twin (child behaviour qnr at 16), see value labelsderivedchild qnrintegerordinal0, 1, 2, 3 or more
pcbhlfevpat1/2Life events: count of positive events that affected twin (child behaviour qnr at 16), see value labelsderivedchild qnrintegerordinal0, 1, 2, 3, 4 or more
pcbhlfevpnt1/2Life events: count of positive events that occurred with no effect on twin (child behaviour qnr at 16), see value labelsderivedchild qnrintegerordinal0, 1, 2, 3 or more
pcbhLLCage1 Age of twin when twin 16 year behaviour booklet returned (for use in LLC TRE), months derivedadminintegerquantitativeapprox. 180 to 208 (months)
pcbhLLCdate1 Date when twin 16 year behaviour booklet returned (for use in LLC TRE), yyyy-mm string derivedadminstringdate valueapprox. '2011-02' to '2012-06'
pcbhlss11/2Life Satisfaction Scale item 1, family life (child behaviour qnr at 16), 1=very dissatisfied .. 7=very satisfieditem child qnrintegerordinal1=very dissatisfied, 2=quite dissatisfied, 3=slightly dissatisfied, 4=neutral, 5=slightly satisfied, 6=quite satisfied, 7=very satisfied
pcbhlss21/2Life Satisfaction Scale item 2, friendships (child behaviour qnr at 16), 1=very dissatisfied .. 7=very satisfieditem child qnrintegerordinal1=very dissatisfied, 2=quite dissatisfied, 3=slightly dissatisfied, 4=neutral, 5=slightly satisfied, 6=quite satisfied, 7=very satisfied
pcbhlss31/2Life Satisfaction Scale item 3, school experience (child behaviour qnr at 16), 1=very dissatisfied .. 7=very satisfied itemchild qnrintegerordinal1=very dissatisfied, 2=quite dissatisfied, 3=slightly dissatisfied, 4=neutral, 5=slightly satisfied, 6=quite satisfied, 7=very satisfied
pcbhlss41/2Life Satisfaction Scale item 4, yourself (child behaviour qnr at 16), 1=very dissatisfied .. 7=very satisfieditem child qnrintegerordinal1=very dissatisfied, 2=quite dissatisfied, 3=slightly dissatisfied, 4=neutral, 5=slightly satisfied, 6=quite satisfied, 7=very satisfied
pcbhlss51/2Life Satisfaction Scale item 5, where you live (child behaviour qnr at 16), 1=very dissatisfied .. 7=very satisfied itemchild qnrintegerordinal1=very dissatisfied, 2=quite dissatisfied, 3=slightly dissatisfied, 4=neutral, 5=slightly satisfied, 6=quite satisfied, 7=very satisfied
pcbhlss61/2Life Satisfaction Scale item 6, life overall (child behaviour qnr at 16), 1=very dissatisfied .. 7=very satisfieditem child qnrintegerordinal1=very dissatisfied, 2=quite dissatisfied, 3=slightly dissatisfied, 4=neutral, 5=slightly satisfied, 6=quite satisfied, 7=very satisfied
pcbhlssm1/2Life Satisfaction Scale overall mean score (child behaviour qnr at 16), 1-7derivedchild qnrdecimal scale value1 to 7
pcbhmaas11/2Mindful Attention Awareness Scale item 1, doing things automatically (child behaviour qnr at 16), 0=almost never .. 5=almost alwaysitemchild qnrintegerordinal 0=almost never, 1=not very often at all, 2=not very often, 3=somewhat often, 4=very often, 5=almost always
pcbhmaas21/2Mindful Attention Awareness Scale item 2, rush through activities (child behaviour qnr at 16), 0=almost never .. 5=almost alwaysitemchild qnrintegerordinal 0=almost never, 1=not very often at all, 2=not very often, 3=somewhat often, 4=very often, 5=almost always
pcbhmaas31/2Mindful Attention Awareness Scale item 3, focus on future goal (child behaviour qnr at 16), 0=almost never .. 5=almost always itemchild qnrintegerordinal0=almost never, 1=not very often at all, 2=not very often, 3=somewhat often, 4=very often, 5=almost always
pcbhmaas41/2Mindful Attention Awareness Scale item 4, do jobs automatically (child behaviour qnr at 16), 0=almost never .. 5=almost always itemchild qnrintegerordinal0=almost never, 1=not very often at all, 2=not very often, 3=somewhat often, 4=very often, 5=almost always
pcbhmaas51/2Mindful Attention Awareness Scale item 5, without paying attention (child behaviour qnr at 16), 0=almost never .. 5=almost alwaysitemchild qnrintegerordinal 0=almost never, 1=not very often at all, 2=not very often, 3=somewhat often, 4=very often, 5=almost always
pcbhmaast1/2Mindful Attention Awareness (MAAS) overall total scale (child behaviour qnr at 16, cohort 1 only), 1-25derivedchild qnrdecimal scale value1 to 25
pcbhmfq011/2MFQ item 1, miserable or unhappy (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnr integerordinal0=not true, 1=quite true, 2=very true
pcbhmfq021/2MFQ item 2, did not enjoy anything (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnr integerordinal0=not true, 1=quite true, 2=very true
pcbhmfq031/2MFQ item 3, felt so tired (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnr integerordinal0=not true, 1=quite true, 2=very true
pcbhmfq041/2MFQ item 4, very restless (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnr integerordinal0=not true, 1=quite true, 2=very true
pcbhmfq051/2MFQ item 5, felt no good (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnr integerordinal0=not true, 1=quite true, 2=very true
pcbhmfq061/2MFQ item 6, cried a lot (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnr integerordinal0=not true, 1=quite true, 2=very true
pcbhmfq071/2MFQ item 7, hard to think properly (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnr integerordinal0=not true, 1=quite true, 2=very true
pcbhmfq081/2MFQ item 8, hated myself (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnr integerordinal0=not true, 1=quite true, 2=very true
pcbhmfq091/2MFQ item 9, felt bad person (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnr integerordinal0=not true, 1=quite true, 2=very true
pcbhmfq101/2MFQ item 10, felt lonely (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnr integerordinal0=not true, 1=quite true, 2=very true
pcbhmfq111/2MFQ item 11, nobody loved me (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnr integerordinal0=not true, 1=quite true, 2=very true
pcbhmfq121/2MFQ item 12, never as good as others (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhmfq131/2MFQ item 13, did everything wrong (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnr integerordinal0=not true, 1=quite true, 2=very true
pcbhmfqt1/2MFQ total scale (child behaviour qnr at 16), 0-26 derivedchild qnrdecimalscale value0 to 26
pcbhmlife11/2Meaning in Life item 1, life interests (child behaviour qnr at 16, not cohort 1), 1=strongly disagree .. 7=strongly agree itemchild qnrintegerordinal1=strongly disagree, 2=disagree, 3=slightly disagree, 4=neither agree nor disagree, 5=slightly agree, 6=agree, 7=strongly agree
pcbhmlife21/2Meaning in Life item 2, accomplished (child behaviour qnr at 16, not cohort 1), 1=strongly disagree .. 7=strongly agree itemchild qnrintegerordinal1=strongly disagree, 2=disagree, 3=slightly disagree, 4=neither agree nor disagree, 5=slightly agree, 6=agree, 7=strongly agree
pcbhmlife31/2Meaning in Life item 3, philosophy (child behaviour qnr at 16, not cohort 1), 1=strongly disagree .. 7=strongly agree itemchild qnrintegerordinal1=strongly disagree, 2=disagree, 3=slightly disagree, 4=neither agree nor disagree, 5=slightly agree, 6=agree, 7=strongly agree
pcbhmlife41/2Meaning in Life item 4, future goals (child behaviour qnr at 16, not cohort 1), 1=strongly disagree .. 7=strongly agree itemchild qnrintegerordinal1=strongly disagree, 2=disagree, 3=slightly disagree, 4=neither agree nor disagree, 5=slightly agree, 6=agree, 7=strongly agree
pcbhmlife51/2Meaning in Life item 5, life is significant (child behaviour qnr at 16, not cohort 1), 1=strongly disagree .. 7=strongly agree itemchild qnrintegerordinal1=strongly disagree, 2=disagree, 3=slightly disagree, 4=neither agree nor disagree, 5=slightly agree, 6=agree, 7=strongly agree
pcbhmlifem1/2Meaning in Life overall mean score (child behaviour qnr at 16, not cohort 1), 1-7 derivedchild qnrdecimalscale value1 to 7
pcbhmvalue11/2Materialistic Values item 1, admire people (child behaviour qnr at 16, not cohort 1), 1=strongly disagree .. 5=strongly agree itemchild qnrintegerordinal1=strongly disagree, 2=disagree, 3=neither agree nor disagree, 4=agree, 5=strongly agree
pcbhmvalue21/2Materialistic Values item 2, things I own (child behaviour qnr at 16, not cohort 1), 1=strongly disagree .. 5=strongly agree itemchild qnrintegerordinal1=strongly disagree, 2=disagree, 3=neither agree nor disagree, 4=agree, 5=strongly agree
pcbhmvalue31/2Materialistic Values item 3, buying things (child behaviour qnr at 16, not cohort 1), 1=strongly disagree .. 5=strongly agree itemchild qnrintegerordinal1=strongly disagree, 2=disagree, 3=neither agree nor disagree, 4=agree, 5=strongly agree
pcbhmvalue41/2Materialistic Values item 4, like luxury (child behaviour qnr at 16, not cohort 1), 1=strongly disagree .. 5=strongly agree itemchild qnrintegerordinal1=strongly disagree, 2=disagree, 3=neither agree nor disagree, 4=agree, 5=strongly agree
pcbhmvalue51/2Materialistic Values item 5, life would be better (child behaviour qnr at 16, not cohort 1), 1=strongly disagree .. 5=strongly agreeitemchild qnrintegerordinal 1=strongly disagree, 2=disagree, 3=neither agree nor disagree, 4=agree, 5=strongly agree
pcbhmvalue61/2Materialistic Values item 6, would be happier (child behaviour qnr at 16, not cohort 1), 1=strongly disagree .. 5=strongly agreeitemchild qnrintegerordinal 1=strongly disagree, 2=disagree, 3=neither agree nor disagree, 4=agree, 5=strongly agree
pcbhmvaluecenm1/2Materialistic Values centrality subscale mean score (child behaviour qnr at 16, not cohort 1), 1-5 derivedchild qnrdecimalscale value1 to 5
pcbhmvaluehapm1/2Materialistic Values happiness subscale mean score (child behaviour qnr at 16, not cohort 1), 1-5 derivedchild qnrdecimalscale value1 to 5
pcbhmvaluesucm1/2Materialistic Values success subscale mean score (child behaviour qnr at 16, not cohort 1), 1-5 derivedchild qnrdecimalscale value1 to 5
pcbhmvaluem1/2Materialistic Values overall mean score (child behaviour qnr at 16, not cohort 1), 1-5 derivedchild qnrdecimalscale value1 to 5
pcbhpneed011/2Psychological Needs item 1, free to decide (child behaviour qnr at 16, not cohort 1), 0=not at all .. 6=very trueitem child qnrintegerordinal0=not at all true, 1, 2, 3=somewhat true, 4, 5, 6=very true
pcbhpneed021/2Psychological Needs item 2, like people (child behaviour qnr at 16, not cohort 1), 0=not at all .. 6=very trueitem child qnrintegerordinal0=not at all true, 1, 2, 3=somewhat true, 4, 5, 6=very true
pcbhpneed031/2Psychological Needs item 3, not competent (child behaviour qnr at 16, not cohort 1), 0=not at all .. 6=very trueitem child qnrintegerordinal0=not at all true, 1, 2, 3=somewhat true, 4, 5, 6=very true
pcbhpneed03r1/2Reversed version of Psychological Needs item 3 (child behaviour qnr at 16, not cohort 1), 6=not at all .. 0=very trueitem child qnrintegerordinal6=not at all true, 1, 2, 3=somewhat true, 4, 5, 0=very true
pcbhpneed041/2Psychological Needs item 4, pressured (child behaviour qnr at 16, not cohort 1), 0=not at all .. 6=very trueitem child qnrintegerordinal0=not at all true, 1, 2, 3=somewhat true, 4, 5, 6=very true
pcbhpneed04r1/2Reversed version of Psychological Needs item 4 (child behaviour qnr at 16, not cohort 1), 6=not at all .. 0=very trueitem child qnrintegerordinal6=not at all true, 1, 2, 3=somewhat true, 4, 5, 0=very true
pcbhpneed051/2Psychological Needs item 5, tell me I am good (child behaviour qnr at 16, not cohort 1), 0=not at all .. 6=very true itemchild qnrintegerordinal0=not at all true, 1, 2, 3=somewhat true, 4, 5, 6=very true
pcbhpneed061/2Psychological Needs item 6, get along (child behaviour qnr at 16, not cohort 1), 0=not at all .. 6=very trueitem child qnrintegerordinal0=not at all true, 1, 2, 3=somewhat true, 4, 5, 6=very true
pcbhpneed071/2Psychological Needs item 7, keep to myself (child behaviour qnr at 16, not cohort 1), 0=not at all .. 6=very trueitem child qnrintegerordinal0=not at all true, 1, 2, 3=somewhat true, 4, 5, 6=very true
pcbhpneed07r1/2Reversed version of Psychological Needs item 7 (child behaviour qnr at 16, not cohort 1), 6=not at all .. 0=very trueitem child qnrintegerordinal6=not at all true, 1, 2, 3=somewhat true, 4, 5, 0=very true
pcbhpneed081/2Psychological Needs item 8, express my ideas (child behaviour qnr at 16, not cohort 1), 0=not at all .. 6=very true itemchild qnrintegerordinal0=not at all true, 1, 2, 3=somewhat true, 4, 5, 6=very true
pcbhpneed091/2Psychological Needs item 9, friends (child behaviour qnr at 16, not cohort 1), 0=not at all .. 6=very trueitem child qnrintegerordinal0=not at all true, 1, 2, 3=somewhat true, 4, 5, 6=very true
pcbhpneed101/2Psychological Needs item 10, new skills (child behaviour qnr at 16, not cohort 1), 0=not at all .. 6=very trueitem child qnrintegerordinal0=not at all true, 1, 2, 3=somewhat true, 4, 5, 6=very true
pcbhpneed111/2Psychological Needs item 11, do what told (child behaviour qnr at 16, not cohort 1), 0=not at all .. 6=very trueitem child qnrintegerordinal0=not at all true, 1, 2, 3=somewhat true, 4, 5, 6=very true
pcbhpneed11r1/2Reversed version of Psychological Needs item 11 (child behaviour qnr at 16, not cohort 1), 6=not at all .. 0=very trueitem child qnrintegerordinal6=not at all true, 1, 2, 3=somewhat true, 4, 5, 0=very true
pcbhpneed121/2Psychological Needs item 12, care about me (child behaviour qnr at 16, not cohort 1), 0=not at all .. 6=very trueitem child qnrintegerordinal0=not at all true, 1, 2, 3=somewhat true, 4, 5, 6=very true
pcbhpneed131/2Psychological Needs item 13, accomplishment (child behaviour qnr at 16, not cohort 1), 0=not at all .. 6=very true itemchild qnrintegerordinal0=not at all true, 1, 2, 3=somewhat true, 4, 5, 6=very true
pcbhpneed141/2Psychological Needs item 14, feelings (child behaviour qnr at 16, not cohort 1), 0=not at all .. 6=very trueitem child qnrintegerordinal0=not at all true, 1, 2, 3=somewhat true, 4, 5, 6=very true
pcbhpneed151/2Psychological Needs item 15, show how capable (child behaviour qnr at 16, not cohort 1), 0=not at all .. 6=very true itemchild qnrintegerordinal0=not at all true, 1, 2, 3=somewhat true, 4, 5, 6=very true
pcbhpneed15r1/2Reversed version of Psychological Needs item 15 (child behaviour qnr at 16, not cohort 1), 6=not at all .. 0=very trueitem child qnrintegerordinal6=not at all true, 1, 2, 3=somewhat true, 4, 5, 0=very true
pcbhpneed161/2Psychological Needs item 16, not many people (child behaviour qnr at 16, not cohort 1), 0=not at all .. 6=very true itemchild qnrintegerordinal0=not at all true, 1, 2, 3=somewhat true, 4, 5, 6=very true
pcbhpneed16r1/2Reversed version of Psychological Needs item 16 (child behaviour qnr at 16, not cohort 1), 6=not at all .. 0=very trueitem child qnrintegerordinal6=not at all true, 1, 2, 3=somewhat true, 4, 5, 0=very true
pcbhpneed171/2Psychological Needs item 17, be myself (child behaviour qnr at 16, not cohort 1), 0=not at all .. 6=very trueitem child qnrintegerordinal0=not at all true, 1, 2, 3=somewhat true, 4, 5, 6=very true
pcbhpneed181/2Psychological Needs item 18, do not like me (child behaviour qnr at 16, not cohort 1), 0=not at all .. 6=very true itemchild qnrintegerordinal0=not at all true, 1, 2, 3=somewhat true, 4, 5, 6=very true
pcbhpneed18r1/2Reversed version of Psychological Needs item 18 (child behaviour qnr at 16, not cohort 1), 6=not at all .. 0=very trueitem child qnrintegerordinal6=not at all true, 1, 2, 3=somewhat true, 4, 5, 0=very true
pcbhpneed191/2Psychological Needs item 19, not feel capable (child behaviour qnr at 16, not cohort 1), 0=not at all .. 6=very true itemchild qnrintegerordinal0=not at all true, 1, 2, 3=somewhat true, 4, 5, 6=very true
pcbhpneed19r1/2Reversed version of Psychological Needs item 19 (child behaviour qnr at 16, not cohort 1), 6=not at all .. 0=very trueitem child qnrintegerordinal6=not at all true, 1, 2, 3=somewhat true, 4, 5, 0=very true
pcbhpneed201/2Psychological Needs item 20, not decide (child behaviour qnr at 16, not cohort 1), 0=not at all .. 6=very trueitem child qnrintegerordinal0=not at all true, 1, 2, 3=somewhat true, 4, 5, 6=very true
pcbhpneed211/2Psychological Needs item 21, friendly towards me (child behaviour qnr at 16, not cohort 1), 0=not at all .. 6=very true itemchild qnrintegerordinal0=not at all true, 1, 2, 3=somewhat true, 4, 5, 6=very true
pcbhpneedautt1/2Psychological Needs autonomy subscale (child behaviour qnr at 16, not cohort 1), 0-42 derivedchild qnrdecimalscale value0 to 42
pcbhpneedcomt1/2Psychological Needs competence subscale (child behaviour qnr at 16, not cohort 1), 0-36 derivedchild qnrdecimalscale value0 to 36
pcbhpneedrelt1/2Psychological Needs relatedness subscale (child behaviour qnr at 16, not cohort 1), 0-48 derivedchild qnrdecimalscale value0 to 48
pcbhpneedt1/2Psychological Needs overall total scale (child behaviour qnr at 16, not cohort 1), 0-126 derivedchild qnrdecimalscale value0 to 126
pcbhprnd011/2Paranoid Checklist item 1, on my guard (child behaviour qnr at 16), 0=not at all .. 5=dailyitemchild qnr integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcbhprnd021/2Paranoid Checklist item 2, negative comments (child behaviour qnr at 16), 0=not at all .. 5=dailyitem child qnrintegerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcbhprnd031/2Paranoid Checklist item 3, irritate me (child behaviour qnr at 16), 0=not at all .. 5=dailyitemchild qnr integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcbhprnd041/2Paranoid Checklist item 4, observed or followed (child behaviour qnr at 16), 0=not at all .. 5=dailyitem child qnrintegerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcbhprnd051/2Paranoid Checklist item 5, upset me (child behaviour qnr at 16), 0=not at all .. 5=dailyitemchild qnr integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcbhprnd061/2Paranoid Checklist item 6, looking unfriendly (child behaviour qnr at 16), 0=not at all .. 5=dailyitem child qnrintegerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcbhprnd071/2Paranoid Checklist item 7, hostile towards me (child behaviour qnr at 16), 0=not at all .. 5=dailyitem child qnrintegerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcbhprnd081/2Paranoid Checklist item 8, bad things said (child behaviour qnr at 16), 0=not at all .. 5=dailyitemchild qnr integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcbhprnd091/2Paranoid Checklist item 9, bad intentions (child behaviour qnr at 16), 0=not at all .. 5=dailyitemchild qnr integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcbhprnd101/2Paranoid Checklist item 10, has it in for me (child behaviour qnr at 16), 0=not at all .. 5=dailyitem child qnrintegerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcbhprnd111/2Paranoid Checklist item 11, harm me (child behaviour qnr at 16), 0=not at all .. 5=dailyitemchild qnr integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcbhprnd121/2Paranoid Checklist item 12, conspiring against me (child behaviour qnr at 16), 0=not at all .. 5=dailyitem child qnrintegerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcbhprnd131/2Paranoid Checklist item 13, laughing at me (child behaviour qnr at 16), 0=not at all .. 5=dailyitemchild qnr integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcbhprnd141/2Paranoid Checklist item 14, under threat (child behaviour qnr at 16), 0=not at all .. 5=dailyitemchild qnr integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcbhprnd151/2Paranoid Checklist item 15, coded messages about me (child behaviour qnr at 16), 0=not at all .. 5=dailyitem child qnrintegerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcbhprndt1/2Paranoid Checklist total scale (child behaviour qnr at 16), 0-75derivedchild qnrdecimalscale value0 to 75
pcbhsdqbeht1/2SDQ Behaviour Problems total scale (child behaviour qnr at 16), 0-40derivedchild qnrdecimalscale value0 to 40
pcbhsdqcon11/2SDQ Conduct item 1, get very angry (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhsdqcon21/2SDQ Conduct item 2, do as I am told (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhsdqcon2r1/2Reversed version of SDQ Conduct item 2 (child behaviour qnr at 16)itemchild qnrintegerordinal0=very true, 1=quite true, 2=not true
pcbhsdqcon31/2SDQ Conduct item 3, fight (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhsdqcon41/2SDQ Conduct item 4, lying or cheating (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhsdqcon51/2SDQ Conduct item 5, take things that are not mine (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhsdqcont1/2SDQ Conduct scale (child behaviour qnr at 16), 0-10derivedchild qnrdecimalscale value0 to 10
pcbhsdqemo11/2SDQ Emotion item 1, headaches (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhsdqemo21/2SDQ Emotion item 2, worry (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhsdqemo41/2SDQ Emotion item 4, nervous in new situations (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhsdqemo51/2SDQ Emotion item 5, many fears (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhsdqemot1/2SDQ Emotion scale (child behaviour qnr at 16), 0-10derivedchild qnrdecimalscale value0 to 10
pcbhsdqhyp11/2SDQ Hyperactivity item 1, restless (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhsdqhyp21/2SDQ Hyperactivity item 2, fidgeting (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhsdqhyp31/2SDQ Hyperactivity item 3, easily distracted (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhsdqhyp41/2SDQ Hyperactivity item 4, think before doing things (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhsdqhyp4r1/2Reversed version of SDQ Hyperactivity item 4 (child behaviour qnr at 16)itemchild qnrintegerordinal0=very true, 1=quite true, 2=not true
pcbhsdqhyp51/2SDQ Hyperactivity item 5, finish the work I am doing (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhsdqhyp5r1/2Reversed version of SDQ Hyperactivity item 5 (child behaviour qnr at 16)itemchild qnrintegerordinal0=very true, 1=quite true, 2=not true
pcbhsdqhypt1/2SDQ Hyperactivity scale (child behaviour qnr at 16), 0-10derivedchild qnrdecimalscale value0 to 10
pcbhsdqper11/2SDQ Peer item 1, usually on my own (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhsdqper21/2SDQ Peer item 2, have one good friend (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhsdqper2r1/2Reversed version of SDQ Peer item 2 (child behaviour qnr at 16)itemchild qnrintegerordinal0=very true, 1=quite true, 2=not true
pcbhsdqper31/2SDQ Peer item 3, others like me (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhsdqper3r1/2Reversed version of SDQ Peer item 3 (child behaviour qnr at 16)itemchild qnrintegerordinal0=very true, 1=quite true, 2=not true
pcbhsdqper41/2SDQ Peer item 4, others bully me (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhsdqper51/2SDQ Peer item 5, get on better with adults (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhsdqpert1/2SDQ Peer Problems scale (child behaviour qnr at 16), 0-10derivedchild qnrdecimalscale value0 to 10
pcbhsdqpro11/2SDQ Prosocial item 1, nice to other people (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhsdqpro21/2SDQ Prosocial item 2, share with others (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhsdqpro31/2SDQ Prosocial item 3, helpful if someone hurt (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhsdqpro41/2SDQ Prosocial item 4, kind to younger children (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhsdqpro51/2SDQ Prosocial item 5, volunteer to help others (child behaviour qnr at 16), 0=not 1=quite 2=very trueitemchild qnrintegerordinal0=not true, 1=quite true, 2=very true
pcbhsdqprot1/2SDQ Prosocial scale (child behaviour qnr at 16), 0-10derivedchild qnrdecimalscale value0 to 10
pcbhshs11/2Subjective Happiness Scale item 1, consider myself happy (child behaviour qnr at 16), 1=very unhappy .. 7=very happy itemchild qnrintegerordinal1=a very unhappy person, 2, 3, 4=neutral, 5, 6, 7=a very happy person
pcbhshs21/2Subjective Happiness Scale item 2, happy compared to others (child behaviour qnr at 16), 1=much less .. 7=much more happy itemchild qnrintegerordinal1=much less happy, 2, 3, 4=average, 5, 6, 7=much more happy
pcbhshs31/2Subjective Happiness Scale item 3, enjoy life (child behaviour qnr at 16), 1=not at all .. 7=great dealitem child qnrintegerordinal1=not at all, 2, 3, 4=mixed, 5, 6, 7=a great deal
pcbhshs41/2Subjective Happiness Scale item 4, not happy (child behaviour qnr at 16), 1=not at all .. 7=great dealitem child qnrintegerordinal1=not at all, 2, 3, 4=mixed, 5, 6, 7=a great deal
pcbhshs4r1/2Reversed version of Subjective Happiness Scale item 4 (child behaviour qnr at 16)itemchild qnrinteger ordinal1=a great deal, 2, 3, 4=mixed, 5, 6, 7=not at all
pcbhshsm1/2Subjective Happiness Scale overall mean score (child behaviour qnr at 16), 1-7derivedchild qnrdecimal scale value1 to 7
pcbhsktt1a1/2Skills and Talents item 1, striking skill (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhsktt1b1/2Skills and Talents item 1, striking skill: maths (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhsktt1c1/2Skills and Talents item 1, striking skill: music (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhsktt1d1/2Skills and Talents item 1, striking skill: art (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhsktt1e1/2Skills and Talents item 1, striking skill: memory (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhsktt1f1/2Skills and Talents item 1, striking skill: science (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhsktt1g1/2Skills and Talents item 1, striking skill: sport (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhsktt1h1/2Skills and Talents item 1, striking skill: dance/drama (child behaviour qnr at 16), 1Y 0Nitemchild qnrintegernominal0=no, 1=yes
pcbhsktt1i1/2Skills and Talents item 1, striking skill: social (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhsktt1j1/2Skills and Talents item 1, striking skill: writing (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhsktt1k1/2Skills and Talents item 1, striking skill: tech/computing (child behaviour qnr at 16), 1Y 0Nitemchild qnrintegernominal0=no, 1=yes
pcbhsktt1l1/2Skills and Talents item 1, striking skill: mechanical (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhsktt2a1/2Skills and Talents item 2, special ability (child behaviour qnr at 16), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbhsktt2b1/2Skills and Talents item 2, special ability: maths (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhsktt2c1/2Skills and Talents item 2, special ability: music (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhsktt2d1/2Skills and Talents item 2, special ability: art (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhsktt2e1/2Skills and Talents item 2, special ability: memory (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhsktt2f1/2Skills and Talents item 2, special ability: science (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhsktt2g1/2Skills and Talents item 2, special ability: sport (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhsktt2h1/2Skills and Talents item 2, special ability: dance/drama (child behaviour qnr at 16), 1Y 0Nitemchild qnrintegernominal0=no, 1=yes
pcbhsktt2i1/2Skills and Talents item 2, special ability: social (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhsktt2j1/2Skills and Talents item 2, special ability: writing (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhsktt2k1/2Skills and Talents item 2, special ability: tech/computing (child behaviour qnr at 16), 1Y 0Nitemchild qnrintegernominal0=no, 1=yes
pcbhsktt2l1/2Skills and Talents item 2, special ability: mechanical (child behaviour qnr at 16), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhsleep11/2Sleep item 1, bed time (child behaviour qnr at 16, not cohort 1), 1=8-9pm .. 6=after 1amitemchild qnr integerordinal1=8pm-9pm, 2=9pm-10pm, 3=10pm-11pm, 4=11pm-12am, 5=12am-1am, 6=later than 1am
pcbhsleep21/2Sleep item 2, time to fall asleep (child behaviour qnr at 16, not cohort 1), 1=less than 5 mins .. 6=more than 30 mins itemchild qnrintegerordinal1=less than 5 mins, 2=5-10 mins, 3=10-15 mins, 4=15-20 mins, 5=20-30 mins, 6=longer than 30 mins
pcbhsleep31/2Sleep item 3, get up in morning (child behaviour qnr at 16, not cohort 1), 1=before 6am .. 5=after 9amitem child qnrintegerordinal1=earlier than 6am, 2=6am-7am, 3=7am-8am, 4=8am-9am, 5=later than 9am
pcbhsleep41/2Sleep item 4, hours of sleep (child behaviour qnr at 16, not cohort 1), 1=less than 5 hours .. 7=more than 10 hours itemchild qnrintegerordinal1=less than 5 hours, 2=5-6 hours, 3=6-7 hours, 4=7-8 hours, 5=8-9 hours, 6=9-10 hours, 7=more than 10 hours
pcbhsleep5a1/2Sleep item 5a, cannot get to sleep (child behaviour qnr at 16, not cohort 1), 0=not in past month .. 3=three or more times a weekitemchild qnrintegerordinal 0=not during the past month, 1=less than once a week, 2=once or twice a week, 3=three or more times a week
pcbhsleep5b1/2Sleep item 5b, wake in middle of night (child behaviour qnr at 16, not cohort 1), 0=not in past month .. 3=three or more times a weekitemchild qnrintegerordinal 0=not during the past month, 1=less than once a week, 2=once or twice a week, 3=three or more times a week
pcbhsleep5c1/2Sleep item 5c, get up for bathroom (child behaviour qnr at 16, not cohort 1), 0=not in past month .. 3=three or more times a weekitemchild qnrintegerordinal 0=not during the past month, 1=less than once a week, 2=once or twice a week, 3=three or more times a week
pcbhsleep5d1/2Sleep item 5d, cannot breathe (child behaviour qnr at 16, not cohort 1), 0=not in past month .. 3=three or more times a weekitemchild qnrintegerordinal 0=not during the past month, 1=less than once a week, 2=once or twice a week, 3=three or more times a week
pcbhsleep5e1/2Sleep item 5e, cough or snore (child behaviour qnr at 16, not cohort 1), 0=not in past month .. 3=three or more times a weekitemchild qnrintegerordinal 0=not during the past month, 1=less than once a week, 2=once or twice a week, 3=three or more times a week
pcbhsleep5f1/2Sleep item 5f, feel too cold (child behaviour qnr at 16, not cohort 1), 0=not in past month .. 3=three or more times a week itemchild qnrintegerordinal0=not during the past month, 1=less than once a week, 2=once or twice a week, 3=three or more times a week
pcbhsleep5g1/2Sleep item 5g, feel too hot (child behaviour qnr at 16, not cohort 1), 0=not in past month .. 3=three or more times a week itemchild qnrintegerordinal0=not during the past month, 1=less than once a week, 2=once or twice a week, 3=three or more times a week
pcbhsleep5h1/2Sleep item 5h, bad dreams (child behaviour qnr at 16, not cohort 1), 0=not in past month .. 3=three or more times a week itemchild qnrintegerordinal0=not during the past month, 1=less than once a week, 2=once or twice a week, 3=three or more times a week
pcbhsleep5i1/2Sleep item 5i, pain (child behaviour qnr at 16, not cohort 1), 0=not in past month .. 3=three or more times a week itemchild qnrintegerordinal0=not during the past month, 1=less than once a week, 2=once or twice a week, 3=three or more times a week
pcbhsleep61/2Sleep item 6, taken medicine (child behaviour qnr at 16, not cohort 1), 0=not in past month .. 3=three or more times a week itemchild qnrintegerordinal0=not during the past month, 1=less than once a week, 2=once or twice a week, 3=three or more times a week
pcbhsleep71/2Sleep item 7, trouble staying awake (child behaviour qnr at 16, not cohort 1), 0=not in past month .. 3=three or more times a weekitemchild qnrintegerordinal 0=not during the past month, 1=less than once a week, 2=once or twice a week, 3=three or more times a week
pcbhsleep81/2Sleep item 8, keep up enthusiasm (child behaviour qnr at 16, not cohort 1), 0=no problem .. 3=very big problemitem child qnrintegerordinal0=no problem at all, 1=only a very slight problem, 2=somewhat of a problem, 3=a very big problem
pcbhsleep91/2Sleep item 9, sleep quality (child behaviour qnr at 16, not cohort 1), 0=very good .. 3=very baditemchild qnrintegerordinal 0=very good, 1=fairly good, 2=fairly bad, 3=very bad
pcbhsleepdis1/2Sleep disturbance subscale (child behaviour qnr at 16, not cohort 1), 0-3derivedchild qnrinteger ordinal0 to 3
pcbhsleepdur1/2Sleep duration subscale (child behaviour qnr at 16, not cohort 1), 0-3derivedchild qnrinteger ordinal0 to 3
pcbhsleepdys1/2Sleep day dysfunction subscale (child behaviour qnr at 16, not cohort 1), 0-3derivedchild qnr integerordinal0 to 3
pcbhsleepeff1/2Sleep efficiency subscale (child behaviour qnr at 16, not cohort 1), 0-3derivedchild qnrinteger ordinal 0 to 3
pcbhsleeplat1/2Sleep latency subscale (child behaviour qnr at 16, not cohort 1), 0-3derivedchild qnrinteger ordinal0 to 3
pcbhsleept1/2Sleep total scale (child behaviour qnr at 16, not cohort 1), 0-21derivedchild qnrinteger scale value0 to 21
pcbhsmok11/2Smoking item 1, ever smoked cigarette (child behaviour qnr at 16, not cohort 1), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhsmok21/2Smoking item 2, cig smoking habit (child behaviour qnr at 16, not cohort 1), see value labelsitem child qnrintegernominal1=tried once or twice, 2=used to smoke but not now, 3=less than one a week, 4=1-6 a week, 5=more than 6 a week but not daily, 6=one or more every day
pcbhsmok31/2Smoking item 3, age first smoked cig (child behaviour qnr at 16, not cohort 1), see value labelsitemchild qnrintegerordinal1=less than 10, 2=10-12, 3=13-14, 4=15-16, 5=17 or more (years old)
pcbhsmok41/2Smoking item 4, cigarettes smoked total (child behaviour qnr at 16, not cohort 1), see value labels itemchild qnrintegerordinal1=less than 5, 2=5-19, 3=20-49, 4=50-99, 5=100 or more
pcbhsmok51/2Smoking item 5, smoked cig last 12 months (child behaviour qnr at 16, not cohort 1), 1Y 0Nitemchild qnr integernominal0=no, 1=yes
pcbhsmok61/2Smoking item 6, cigarettes per day (child behaviour qnr at 16, not cohort 1), see value labelsitemchild qnrintegernominal1=1-5, 2=6-10, 3=11-20, 4=20 or more
pcbhswan011/2SWAN item 1, close attention to detail (child behaviour qnr at 16), 1=far below .. 7=far above averageitem child qnrintegerordinal1=far below average, 2=below average, 3=slightly below average, 4=average, 5=slightly above average, 6=above average, 7=far above average
pcbhswan021/2SWAN item 2, sustain attention on tasks (child behaviour qnr at 16), 1=far below .. 7=far above averageitem child qnrintegerordinal1=far below average, 2=below average, 3=slightly below average, 4=average, 5=slightly above average, 6=above average, 7=far above average
pcbhswan031/2SWAN item 3, listen when spoken to (child behaviour qnr at 16), 1=far below .. 7=far above averageitem child qnrintegerordinal1=far below average, 2=below average, 3=slightly below average, 4=average, 5=slightly above average, 6=above average, 7=far above average
pcbhswan041/2SWAN item 4, follow instructions (child behaviour qnr at 16), 1=far below .. 7=far above averageitemchild qnrintegerordinal1=far below average, 2=below average, 3=slightly below average, 4=average, 5=slightly above average, 6=above average, 7=far above average
pcbhswan051/2SWAN item 5, organised in tasks (child behaviour qnr at 16), 1=far below .. 7=far above averageitemchild qnrintegerordinal1=far below average, 2=below average, 3=slightly below average, 4=average, 5=slightly above average, 6=above average, 7=far above average
pcbhswan061/2SWAN item 6, engage in tasks (child behaviour qnr at 16), 1=far below .. 7=far above averageitemchild qnr integerordinal1=far below average, 2=below average, 3=slightly below average, 4=average, 5=slightly above average, 6=above average, 7=far above average
pcbhswan071/2SWAN item 7, keep track of things (child behaviour qnr at 16), 1=far below .. 7=far above averageitemchild qnrintegerordinal1=far below average, 2=below average, 3=slightly below average, 4=average, 5=slightly above average, 6=above average, 7=far above average
pcbhswan081/2SWAN item 8, ignore distractions (child behaviour qnr at 16), 1=far below .. 7=far above averageitemchild qnrintegerordinal1=far below average, 2=below average, 3=slightly below average, 4=average, 5=slightly above average, 6=above average, 7=far above average
pcbhswan091/2SWAN item 9, remember daily activities (child behaviour qnr at 16), 1=far below .. 7=far above averageitem child qnrintegerordinal1=far below average, 2=below average, 3=slightly below average, 4=average, 5=slightly above average, 6=above average, 7=far above average
pcbhswan101/2SWAN item 10, sit still (child behaviour qnr at 16), 1=far below .. 7=far above averageitemchild qnr integerordinal1=far below average, 2=below average, 3=slightly below average, 4=average, 5=slightly above average, 6=above average, 7=far above average
pcbhswan111/2SWAN item 11, stay seated (child behaviour qnr at 16), 1=far below .. 7=far above averageitemchild qnr integerordinal1=far below average, 2=below average, 3=slightly below average, 4=average, 5=slightly above average, 6=above average, 7=far above average
pcbhswan121/2SWAN item 12, stop moving about (child behaviour qnr at 16), 1=far below .. 7=far above averageitemchild qnrintegerordinal1=far below average, 2=below average, 3=slightly below average, 4=average, 5=slightly above average, 6=above average, 7=far above average
pcbhswan131/2SWAN item 13, keep noise levels reasonable (child behaviour qnr at 16), 1=far below .. 7=far above averageitem child qnrintegerordinal1=far below average, 2=below average, 3=slightly below average, 4=average, 5=slightly above average, 6=above average, 7=far above average
pcbhswan141/2SWAN item 14, settle down and rest (child behaviour qnr at 16), 1=far below .. 7=far above averageitem child qnrintegerordinal1=far below average, 2=below average, 3=slightly below average, 4=average, 5=slightly above average, 6=above average, 7=far above average
pcbhswan151/2SWAN item 15, control how much talk (child behaviour qnr at 16), 1=far below .. 7=far above averageitem child qnrintegerordinal1=far below average, 2=below average, 3=slightly below average, 4=average, 5=slightly above average, 6=above average, 7=far above average
pcbhswan161/2SWAN item 16, reflect on questions (child behaviour qnr at 16), 1=far below .. 7=far above averageitem child qnrintegerordinal1=far below average, 2=below average, 3=slightly below average, 4=average, 5=slightly above average, 6=above average, 7=far above average
pcbhswan171/2SWAN item 17, await my turn (child behaviour qnr at 16), 1=far below .. 7=far above averageitemchild qnr integerordinal1=far below average, 2=below average, 3=slightly below average, 4=average, 5=slightly above average, 6=above average, 7=far above average
pcbhswan181/2SWAN item 18, enter into conversations (child behaviour qnr at 16), 1=far below .. 7=far above averageitem child qnrintegerordinal1=far below average, 2=below average, 3=slightly below average, 4=average, 5=slightly above average, 6=above average, 7=far above average
pcbhswanhypm1/2SWAN Hyperactivity mean score (child behaviour qnr at 16), 1-7derivedchild qnrdecimal scale value1 to 7
pcbhswaninam1/2SWAN Inattention mean score (child behaviour qnr at 16), 1-7derivedchild qnrdecimalscale value1 to 7
pcbhswanm1/2SWAN overall mean score (child behaviour qnr at 16), 1-7derivedchild qnrdecimalscale value1 to 7
pcbhteps011/2TEPS item 1, something exciting coming up (child behaviour qnr at 16), 0=very false .. 5=very trueitemchild qnrintegerordinal0=very false for me, 1=moderately false for me, 2=slightly false for me, 3=slightly true for me, 4=moderately true for me, 5=very true for me
pcbhteps021/2TEPS item 2, eating my favourite food (child behaviour qnr at 16), 0=very false .. 5=very trueitemchild qnrintegerordinal0=very false for me, 1=moderately false for me, 2=slightly false for me, 3=slightly true for me, 4=moderately true for me, 5=very true for me
pcbhteps031/2TEPS item 3, do not look forward (child behaviour qnr at 16), 0=very false .. 5=very trueitemchild qnr integerordinal0=very false for me, 1=moderately false for me, 2=slightly false for me, 3=slightly true for me, 4=moderately true for me, 5=very true for me
pcbhteps03r1/2Reversed version of TEPS item 3 (child behaviour qnr at 16)itemchild qnrintegerordinal 0=very true for me, 1=moderately true for me, 2=slightly true for me, 3=slightly false for me, 4=moderately false for me, 5=very false for me
pcbhteps041/2TEPS item 4, amusement park (child behaviour qnr at 16), 0=very false .. 5=very trueitemchild qnr integerordinal0=very false for me, 1=moderately false for me, 2=slightly false for me, 3=slightly true for me, 4=moderately true for me, 5=very true for me
pcbhteps051/2TEPS item 5, major holiday (child behaviour qnr at 16), 0=very false .. 5=very trueitemchild qnr integerordinal0=very false for me, 1=moderately false for me, 2=slightly false for me, 3=slightly true for me, 4=moderately true for me, 5=very true for me
pcbhteps061/2TEPS item 6, something tasty (child behaviour qnr at 16), 0=very false .. 5=very trueitemchild qnr integerordinal0=very false for me, 1=moderately false for me, 2=slightly false for me, 3=slightly true for me, 4=moderately true for me, 5=very true for me
pcbhteps071/2TEPS item 7, pleasurable experience (child behaviour qnr at 16), 0=very false .. 5=very trueitemchild qnrintegerordinal0=very false for me, 1=moderately false for me, 2=slightly false for me, 3=slightly true for me, 4=moderately true for me, 5=very true for me
pcbhteps081/2TEPS item 8, look forward (child behaviour qnr at 16), 0=very false .. 5=very trueitemchild qnr integerordinal0=very false for me, 1=moderately false for me, 2=slightly false for me, 3=slightly true for me, 4=moderately true for me, 5=very true for me
pcbhteps091/2TEPS item 9, ordering off menu (child behaviour qnr at 16), 0=very false .. 5=very trueitemchild qnr integerordinal0=very false for me, 1=moderately false for me, 2=slightly false for me, 3=slightly true for me, 4=moderately true for me, 5=very true for me
pcbhteps101/2TEPS item 10, new movie (child behaviour qnr at 16), 0=very false .. 5=very trueitemchild qnr integerordinal0=very false for me, 1=moderately false for me, 2=slightly false for me, 3=slightly true for me, 4=moderately true for me, 5=very true for me
pcbhtepst1/2TEPS Hedonia total scale (child behaviour qnr at 16), 0-50derivedchild qnrdecimalscale value0 to 50
pcbhtrust1/2Trust: people can be trusted (child behaviour qnr at 16, not cohort 1), 1Y 0Nitemchild qnrinteger nominal0=no, 1=yes
pcbmi1/2Twin BMI (child web at 16), kilograms per square metre derivedchild webdecimalscale value approx. 15-35 kilograms per square metre
pccbatm1/2Corsi Block test mean item answer time (child web at 16), secondsderivedchild webdecimal quantitativeapprox. 3-15 seconds
pccbdata1/2Corsi Block test data present (child web at 16), 1Y 0Nitemchild webintegernominal 0=no, 1=yes
pccbquan1/2Corsi Block test number of questions answered (child web at 16)itemchild webinteger quantitativeup to 12
pccbsess1/2Corsi Block test number of sessions used (child web at 16)itemchild webintegerquantitative approx. 1-3
pccbstat1/2Corsi Block web test status (twin web at 16), see value labelsitemchild webintegernominal 0=not started (no data), 1=started but not finished (no data), 2=finished (data present), 3=abandoned or crashed or serial timeouts (data excluded), 4=random responses (data excluded)
pccbtmel1/2Corsi Block test time elapsed (child web at 16), secondsitemchild webintegerquantitative approx. 50-800 seconds
pccbtot1/2Corsi Block test total score (child web at 16), 0-12 itemchild webintegerscale value0 to 12
pccbXYan1/2 (X is the test level 4-9, Y is the item number at that level 1-2)Corsi Block test item X-Y answer (child web at 16), x|y|z|..=sequence of blocks clicked -2=discontinued -4=crashitem child webstringnominalstring of digits separated by "|" symbols, representing the sequence of blocks clicked; -2=discontinued, -4=item crashed
pccbXYsc1/2 (X is the test level 4-9, Y is the item number at that level 1-2)Corsi Block test item X-Y score (child web at 16), 1=correct 0=wrongitemchild webintegerordinal 0=incorrect, 1=correct
pcchatot1/2Chaos total score (child web at 16), 0-12 derivedchild webdecimalscale value0 to 12
pccuriexm1/2Curiosity Explore mean score (child web at 16), 1-7 derivedchild webdecimalscale value1 to 7
pccuriflm1/2Curiosity Flow mean score (child web at 16), 1-7 derivedchild webdecimalscale value1 to 7
pccurim1/2Curiosity overall mean score (child web at 16), 1-7 derivedchild webdecimalscale value1 to 7
pcdisnegt1/2Parental Discipline negative subscale (child web at 16), 0-4 derivedchild webdecimalscale value0 to 4
pcdispost1/2Parental Discipline positive subscale (child web at 16), 0-4 derivedchild webdecimalscale value0 to 4
pcdnatm1/2Dot Number test mean item answer time (child web at 16), secondsderivedchild webdecimal quantitativeapprox. 0.6-1.6 seconds
pcdndata1/2Dot Number test data present (child web at 16), 1Y 0Nitemchild webintegernominal 0=no, 1=yes
pcdnhand1/2Dot Number test handedness (child web at 16), 0=unrecorded 1=right 2=leftitemchild webinteger nominal0=unrecorded, 1=right, 2=left
pcdnquan1/2Dot Number test number of questions answered (child web at 16)itemchild webinteger quantitativeup to 36
pcdnstat1/2Dot Number web test status (twin web at 16), see value labelsitemchild webintegernominal 0=not started (no data), 1=started but not finished (no data), 2=finished (data present), 3=abandoned or crashed or serial timeouts (data excluded), 4=random responses (data excluded)
pcdntmel1/2Dot Number test time elapsed (child web at 16), secondsitemchild webintegerquantitative approx. 20-60 seconds
pcdntot1/2Dot Number test total score (child web at 16), 0-32 itemchild webintegerscale value0 to 32
pcdnXXan1/2 (XX is the item number: 01-36)Dot Number test item XX answer (child web at 16), 1=match 2=no match -1=timeout -4=crash itemchild webintegernominal1=match, 2=no match, -1=timeout, -4=item crash
pcdnXXsc1/2 (XX is the item number: 05-36)Dot Number test item XX score (child web at 16), 1=correct 0=wrongitemchild web integerordinal0=incorrect, 1=correct
pcexage1/2Age of twin on return of exam/GCSE results at 16 derivedadmindecimalquantitativeapprox. 16-17 years old
pcexallcoregrdm1/2Core subjects (English, maths, science): mean grade in all (GCSE + other) results (twin exams at 16), 1-11derivedchild examdecimalscale1 to 11
pcexallenggrdm1/2English: mean grade in all (GCSE + other) results (twin exams at 16), 1-11derivedchild examdecimalscale1 to 11
pcexallengnum1/2English: number of all (GCSE + other) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 2
pcexallengpsct1/2English: point score in all (GCSE + other) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 10
pcexallgrdm1/2all subjects: mean grade in all (GCSE + other) results (twin exams at 16), 1-11derivedchild examdecimalscale1 to 11
pcexallhumgrdm1/2Humanities subjects: mean grade in all (GCSE + other) results (twin exams at 16), 1-11derivedchild examdecimalscale1 to 11
pcexallhumnum1/2Humanities subjects: number of all (GCSE + other) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 6
pcexallhumpsct1/2Humanities subjects: point score in all (GCSE + other) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 50
pcexalllangrdm1/2Language subjects: mean grade in all (GCSE + other) results (twin exams at 16), 1-11derivedchild examdecimalscale1 to 11
pcexalllannum1/2Language subjects: number of all (GCSE + other) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 6
pcexalllanpsct1/2Language subjects: point score in all (GCSE + other) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 40
pcexallmatgrdm1/2Maths: mean grade in all (GCSE + other) results (twin exams at 16), 1-11derivedchild examdecimalscale1 to 11
pcexallmatnum1/2Maths: number of all (GCSE + other) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 3
pcexallmatpsct1/2Maths: point score in all (GCSE + other) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 30
pcexallnum1/2all subjects: number of all (GCSE + other) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 20
pcexallpsct1/2all subjects: point score in all (GCSE + other) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 150
pcexallscigrdm1/2Science: mean grade in all (GCSE + other) results (twin exams at 16), 1-11derivedchild examdecimalscale1 to 11
pcexallscinum1/2Science: number of all (GCSE + other) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 6
pcexallscipsct1/2Science: point score in all (GCSE + other) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 40
pcexalltecgrdm1/2Technology subjects: mean grade in all (GCSE + other) results (twin exams at 16), 1-11derivedchild examdecimalscale1 to 11
pcexalltecnum1/2Technology subjects: number of all (GCSE + other) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 6
pcexalltecpsct1/2Technology subjects: point score in all (GCSE + other) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 60
pcexallvocgrdm1/2Vocational subjects: mean grade in all (GCSE + other) results (twin exams at 16), 1-11derivedchild examdecimalscale1 to 11
pcexallvocnum1/2Vocational subjects: number of all (GCSE + other) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 10
pcexallvocpsct1/2Vocational subjects: point score in all (GCSE + other) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 80
pcexdata1/2Twin exam results returned at 16, 1Y 0Nitem child examintegernominal0=no, 1=yes
pcexgcseage1/2Estimated age of twin when GCSE exams were taken at 16, yearsderivedchild examdecimal scale valueapprox. 15.8 to 16.8
pcexgcseabcnum1/2all subjects at grades A* to C: number of GCSE results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 15
pcexgcsecoregrdm1/2Core subjects (English, maths, science): mean grade in GCSE results (twin exams at 16), 4-11derivedchild examdecimalscale4 to 11
pcexgcseenggrdm1/2English: mean grade in GCSE results (twin exams at 16), 4-11derivedchild examdecimalscale4 to 11
pcexgcseengnum1/2English: number of GCSE results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 2
pcexgcseengpsct1/2English: point score in GCSE results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 20
pcexgcsegrdm1/2all subjects: mean grade in GCSE results (twin exams at 16), 4-11derivedchild examdecimalscale4 to 11
pcexgcsehumgrdm1/2Humanities subjects: mean grade in GCSE results (twin exams at 16), 4-11derivedchild examdecimalscale4 to 11
pcexgcsehumnum1/2Humanities subjects: number of GCSE results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 5
pcexgcsehumpsct1/2Humanities subjects: point score in GCSE results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 50
pcexgcselangrdm1/2Language subjects: mean grade in GCSE results (twin exams at 16), 4-11derivedchild examdecimalscale4 to 11
pcexgcselannum1/2Language subjects: number of GCSE results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 4
pcexgcselanpsct1/2Language subjects: point score in GCSE results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 40
pcexgcseLLCage1 Estimated age of twin when GCSEs or other exams were taken at age 16 (for use in LLC TRE), months derivedadminintegerquantitative190 to 201 (months)
pcexgcseLLCdate1 Estimated date when GCSEs and other exams were taken at 16 (for use in LLC TRE), yyyy-mm string derivedadminstringdate value'2010-06' to '2013-06'
pcexgcsematgrdm1/2Maths: mean grade in GCSE results (twin exams at 16), 4-11derivedchild examdecimalscale4 to 11
pcexgcsematnum1/2Maths: number of GCSE results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 3
pcexgcsematpsct1/2Maths: point score in GCSE results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 30
pcexgcsenum1/2all subjects: number of GCSE results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 15
pcexgcsepsct1/2all subjects: point score in GCSE results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 150
pcexgcsescigrdm1/2Science: mean grade in GCSE results (twin exams at 16), 4-11derivedchild examdecimalscale4 to 11
pcexgcsescinum1/2Science: number of GCSE results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 3
pcexgcsescipsct1/2Science: point score in GCSE results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 30
pcexgcsetecgrdm1/2Technology subjects: mean grade in GCSE results (twin exams at 16), 4-11derivedchild examdecimalscale4 to 11
pcexgcsetecnum1/2Technology subjects: number of GCSE results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 4
pcexgcsetecpsct1/2Technology subjects: point score in GCSE results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 40
pcexgcsevocgrdm1/2Vocational subjects: mean grade in GCSE results (twin exams at 16), 4-11derivedchild examdecimalscale4 to 11
pcexgcsevocnum1/2Vocational subjects: number of GCSE results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 4
pcexgcsevocpsct1/2Vocational subjects: point score in GCSE results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 40
pcexothercoregrdm1/2Core subjects (English, maths, science): mean grade in other (non-GCSE) results (twin exams at 16), 1-11derivedchild examdecimalscale1 to 11
pcexotherenggrdm1/2English: mean grade in other (non-GCSE) results (twin exams at 16), 1-11derivedchild examdecimalscale1 to 11
pcexotherengnum1/2English: number of other (non-GCSE) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 2
pcexotherengpsct1/2English: point score in other (non-GCSE) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 10
pcexothergrdm1/2all subjects: mean grade in other (non-GCSE) results (twin exams at 16), 1-11derivedchild examdecimalscale1 to 11
pcexotherhumgrdm1/2Humanities subjects: mean grade in other (non-GCSE) results (twin exams at 16), 1-11derivedchild examdecimalscale1 to 11
pcexotherhumnum1/2Humanities subjects: number of other (non-GCSE) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 6
pcexotherhumpsct1/2Humanities subjects: point score in other (non-GCSE) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 50
pcexotherlangrdm1/2Language subjects: mean grade in other (non-GCSE) results (twin exams at 16), 1-11derivedchild examdecimalscale1 to 11
pcexotherlannum1/2Language subjects: number of other (non-GCSE) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 4
pcexotherlanpsct1/2Language subjects: point score in other (non-GCSE) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 40
pcexothermatgrdm1/2Maths: mean grade in other (non-GCSE) results (twin exams at 16), 1-11derivedchild examdecimalscale1 to 11
pcexothermatnum1/2Maths: number of other (non-GCSE) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 3
pcexothermatpsct1/2Maths: point score in other (non-GCSE) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 30
pcexothernum1/2all subjects: number of other (non-GCSE) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 15
pcexotherpsct1/2all subjects: point score in other (non-GCSE) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 150
pcexotherscigrdm1/2Science: mean grade in other (non-GCSE) results (twin exams at 16), 1-11derivedchild examdecimalscale1 to 11
pcexotherscinum1/2Science: number of other (non-GCSE) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 4
pcexotherscipsct1/2Science: point score in other (non-GCSE) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 40
pcexothertecgrdm1/2Technology subjects: mean grade in other (non-GCSE) results (twin exams at 16), 1-11derivedchild examdecimalscale1 to 11
pcexothertecnum1/2Technology subjects: number of other (non-GCSE) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 6
pcexothertecpsct1/2Technology subjects: point score in other (non-GCSE) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 60
pcexothervocgrdm1/2Vocational subjects: mean grade in other (non-GCSE) results (twin exams at 16), 1-11derivedchild examdecimalscale1 to 11
pcexothervocnum1/2Vocational subjects: number of other (non-GCSE) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 10
pcexothervocpsct1/2Vocational subjects: point score in other (non-GCSE) results (twin exams at 16)derivedchild examdecimalscaleapprox. 0 to 80
pcexgcseart1/2GCSE Art and Design grade (twin exam results at 16), see value labelsitemchild examinteger ordinal4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexgcsebiol1/2GCSE Biology grade (twin exam results at 16), see value labelsitemchild examinteger ordinal4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexgcsebsst1/2GCSE Business Studies grade (twin exam results at 16), see value labelsitemchild examinteger ordinal4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexgcsechem1/2GCSE Chemistry grade (twin exam results at 16), see value labelsitemchild examinteger ordinal4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexgcsedram1/2GCSE Drama grade (twin exam results at 16), see value labelsitemchild examintegerordinal 4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexgcsedt1/2GCSE DT grade (twin exam results at 16), see value labelsitemchild examintegerordinal 4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexgcseenla1/2GCSE English Language grade (twin exam results at 16), see value labelsitemchild examinteger ordinal4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexgcseenli1/2GCSE English Literature grade (twin exam results at 16), see value labelsitemchild examinteger ordinal4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexgcsefren1/2GCSE French grade (twin exam results at 16), see value labelsitemchild examintegerordinal 4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexgcsegeog1/2GCSE Geography grade (twin exam results at 16), see value labelsitemchild examinteger ordinal4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexgcsegerm1/2GCSE German grade (twin exam results at 16), see value labelsitemchild examintegerordinal 4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexgcsegrdm1/2Mean grade score for GCSE passes (twin exam results at 16), 4-11derivedchild examdecimal scale value4 to 11
pcexgcsehist1/2GCSE History grade (twin exam results at 16), see value labelsitemchild examinteger ordinal4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexgcseict1/2GCSE ICT grade (twin exam results at 16), see value labelsitemchild examintegerordinal 4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexgcsemath1/2GCSE Mathematics grade (twin exam results at 16), see value labelsitemchild examinteger ordinal4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexgcsemdst1/2GCSE Media Studies grade (twin exam results at 16), see value labelsitemchild examinteger ordinal4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexgcsemusc1/2GCSE Music grade (twin exam results at 16), see value labelsitemchild examintegerordinal 4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexgcseoth1g1/2GCSE other grade 1 (twin exam results at 16), see value labelsitemchild examinteger ordinal4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexgcseoth1s1/2GCSE other subject 1 (twin exam results at 16), see value labelsitemchild examinteger nominal1=Maths, 2=English, 3=Science, 4=Technology, 5=Humanities, 6=Language, 7=Vocational
pcexgcseoth2g1/2GCSE other grade 2 (twin exam results at 16), see value labelsitemchild examinteger ordinal4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexgcseoth2s1/2GCSE other subject 2 (twin exam results at 16), see value labelsitemchild examinteger nominal1=Maths, 2=English, 3=Science, 4=Technology, 5=Humanities, 6=Language, 7=Vocational
pcexgcseoth3g1/2GCSE other grade 3 (twin exam results at 16), see value labelsitemchild examinteger ordinal4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexgcseoth3s1/2GCSE other subject 3 (twin exam results at 16), see value labelsitemchild examinteger nominal1=Maths, 2=English, 3=Science, 4=Technology, 5=Humanities, 6=Language, 7=Vocational
pcexgcseoth4g1/2GCSE other grade 4 (twin exam results at 16), see value labelsitemchild examinteger ordinal4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexgcseoth4s1/2GCSE other subject 4 (twin exam results at 16), see value labelsitemchild examinteger nominal1=Maths, 2=English, 3=Science, 4=Technology, 5=Humanities, 6=Language, 7=Vocational
pcexgcsepe1/2GCSE PE grade (twin exam results at 16), see value labelsitemchild examintegerordinal 4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexgcsephys1/2GCSE Physics grade (twin exam results at 16), see value labelsitemchild examinteger ordinal4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexgcsere1/2GCSE RE grade (twin exam results at 16), see value labelsitemchild examintegerordinal 4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexgcsescia1/2GCSE Science Additional grade (twin exam results at 16), see value labelsitemchild examinteger ordinal4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexgcsescic1/2GCSE Science Core grade (twin exam results at 16), see value labelsitemchild examinteger ordinal4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexgcsespan1/2GCSE Spanish grade (twin exam results at 16), see value labelsitemchild examinteger ordinal4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexgcsestat1/2GCSE Statistics grade (twin exam results at 16), see value labelsitemchild examinteger ordinal4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexLLCage1 Age when twin when exam/GCSE results were returned at 16 (for use in LLC TRE), months derivedadminintegerquantitativeapprox. 192 to 208 (months)
pcexLLCdate1 Date when 16 year twin exam results returned (for use in LLC TRE), yyyy-mm string derivedadminstringdate valueapprox. '2010-08' to '2014-02'
pcexnogcse1/2No GCSE pass grades obtained (twin exam results at 16), 1Y 0Nitemchild examintegernominal 0=no, 1=yes
pcexnoother1/2No results in exams other than GCSEs (twin exam results at 16), 1Y 0Nitemchild examinteger nominal0=no, 1=yes
pcexsgcsecitz1/2Short-course GCSE Citizenship grade (twin exam results at 16), see value labelsitemchild exam integerordinal4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexsgcseict1/2Short-course GCSE ICT grade (twin exam results at 16), see value labelsitemchild examinteger ordinal4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexsgcseoths1/2Short-course GCSE other subject (twin exam results at 16), see value labelsitemchild exam integernominal1=Maths, 2=English, 3=Science, 4=Technology, 5=Humanities, 6=Language, 7=Vocational
pcexsgcseothsg1/2Short-course GCSE other grade (twin exam results at 16), see value labelsitemchild exam integerordinal4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexsgcsere1/2Short-course GCSE RE grade (twin exam results at 16), see value labelsitemchild examinteger ordinal4=G, 5=F, 6=E, 7=D, 8=C, 9=B, 10=A, 11=A*
pcexvoc1a1/2Vocational qualification 1 award (twin exam results at 16), see value labelsitemchild examdecimal quantitative0.5, 1, 2, 3, 4 (number of GCSE equivalents)
pcexvoc1g1/2Vocational qualification 1 grade (twin exam results at 16), see value labelsitemchild examinteger ordinal4=level 1 pass, 5=level 1 merit, 6=level 1 distinction, 7=level 1 distinction*, 8=level 2 pass, 9=level 2 merit, 10=level 2 distinction, 11=level 2 distinction*
pcexvoc1s1/2Vocational qualification 1 subject (twin exam results at 16), see value labelsitemchild exam integernominal[long list of integer-coded subjects: see variable value labels]
pcexvoc1t1/2Vocational qualification 1 type (twin exam results at 16), see value labelsitemchild examinteger nominal1=BTEC, 2=OCR National, 3=City and Guilds
pcexvoc2a1/2Vocational qualification 2 award (twin exam results at 16), see value labelsitemchild examdecimal quantitative0.5, 1, 2, 3, 4 (number of GCSE equivalents)
pcexvoc2g1/2Vocational qualification 2 grade (twin exam results at 16), see value labelsitemchild examinteger ordinal4=level 1 pass, 5=level 1 merit, 6=level 1 distinction, 7=level 1 distinction*, 8=level 2 pass, 9=level 2 merit, 10=level 2 distinction, 11=level 2 distinction*
pcexvoc2s1/2Vocational qualification 2 subject (twin exam results at 16), see value labelsitemchild exam integernominal[long list of integer-coded subjects: see variable value labels]
pcexvoc2t1/2Vocational qualification 2 type (twin exam results at 16), see value labelsitemchild examinteger nominal1=BTEC, 2=OCR National, 3=City and Guilds
pcexvoc3a1/2Vocational qualification 3 award (twin exam results at 16), see value labelsitemchild examdecimal quantitative0.5, 1, 2, 3, 4 (number of GCSE equivalents)
pcexvoc3g1/2Vocational qualification 3 grade (twin exam results at 16), see value labelsitemchild examinteger ordinal4=level 1 pass, 5=level 1 merit, 6=level 1 distinction, 7=level 1 distinction*, 8=level 2 pass, 9=level 2 merit, 10=level 2 distinction, 11=level 2 distinction*
pcexvoc3s1/2Vocational qualification 3 subject (twin exam results at 16), see value labelsitemchild exam integernominal[long list of integer-coded subjects: see variable value labels]
pcexvoc3t1/2Vocational qualification 3 type (twin exam results at 16), see value labelsitemchild examinteger nominal1=BTEC, 2=OCR National, 3=City and Guilds
pcflatm1/2Figurative Language test mean item answer time (child web at 16), secondsderivedchild webdecimal quantitativeapprox. 10-40 seconds
pcfldata1/2Figurative Language test data present (child web at 16), 1Y 0Nitemchild webintegernominal 0=no, 1=yes
pcflquan1/2Figurative Language test number of questions answered (child web at 16)itemchild webinteger quantitativeup to 150
pcflsess1/2Figurative Language test number of sessions used (child web at 16)itemchild webinteger quantitativeapprox. 1-4
pcflstat1/2Figurative Language web test status (twin web at 16), see value labelsitemchild webinteger nominal0=not started (no data), 1=started but not finished (no data), 2=finished (data present), 3=abandoned or crashed or serial timeouts (data excluded), 4=random responses (data excluded)
pcfltmel1/2Figurative Language test time elapsed (child web at 16), secondsitemchild webinteger quantitativeapprox. 300-1000 seconds
pcfltot1/2Figurative Language test total score (child web at 16), 0-15itemchild webintegerscale value 0 to 15
pcflXXan1/2 (XX is the item number: 01-15)Figurative Language test item XX answer (child web at 16), 1/2/3/4=answer selected -1=timeout -4=crashitemchild webintegernominal 1=A, 2=B, 3=C, 4=D, -1=timeout, -4=item crashed
pcflXXsc1/2 (XX is the item number: 01-15)Figurative Language test item XX score (child web at 16), 1=correct 0=wrongitem child webintegerordinal0=incorrect, 1=correct
pcg1/2G composite scale from child web tests at 16 derivedchild webdecimalscale value approx. -3 to +3 (standardized)
pcgratm1/2Gratitude overall mean score (child web at 16), 1-7 derivedchild webdecimalscale value1 to 7
pcgritcoim1/2GRIT Consistency of Interest mean score (child web at 16), 1-5derivedchild webdecimalscale value1 to 5
pcgritm1/2GRIT overall mean score (child web at 16), 1-5 derivedchild webdecimalscale value1 to 5
pcgritperm1/2GRIT Perseverance of Interest mean score (child web at 16), 1-5derivedchild webdecimal scale value1 to 5
pchmwkbeht1/2PISA Homework Behaviour scale (child web at 16), 0-6derivedchild webdecimalscale value 0 to 6
pchmwkfdbt1/2PISA Homework Feedback scale (child web at 16), 0-9derivedchild webdecimalscale value 0 to 9
pchmwkt1/2PISA Homework total scale (child web at 16), 0-15 derivedchild webdecimalscale value0 to 15
pchopeagm1/2Hopefulness Agency mean score (child web at 16), 1-6derivedchild webdecimalscale value 1 to 6
pchopem1/2Hopefulness overall mean score (child web at 16), 1-6 derivedchild webdecimalscale value1 to 6
pchopepam1/2Hopefulness Pathways mean score (child web at 16), 1-6derivedchild webdecimalscale value 1 to 6
pcl2age1/2Age of twin on return of LEAP-2 study child booklet at 16derivedadmindecimalquantitative approx. 15.5 to 18.5 years
pcl2alco11/2Alcohol item 1, ever drunk alcohol (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integer nominal0=no, 1=yes
pcl2alco21/2Alcohol item 2, estimated total units consumed last month (child LEAP-2 qnr at 16), number of unitsderivedchild leap2 integerquantitativeapprox. 0 to 200 (units)
pcl2alco31/2Alcohol item 3, how often drink alcohol (child LEAP-2 qnr at 16), see value labelsitemchild leap2 integerordinal0=never, 1=monthly or less, 2=2-4 times a month, 3=2-3 times a week, 4=4 or more times a week
pcl2alco41/2Alcohol item 4, units of alcohol (child LEAP-2 qnr at 16), see value labelsitemchild leap2 integerordinal1=1 or 2, 2=3 or 4, 3=5 or 6, 4=7-9, 5=10 or more
pcl2alco51/2Alcohol item 5, six or more units of alcohol (child LEAP-2 qnr at 16), see value labelsitemchild leap2 integerordinal0=never, 1=less than monthly, 2=monthly, 3=weekly or more
pcl2anhd11/2Introvertive Anhedonia item 1, few things enjoyed doing (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2 integernominal0=no, 1=yes
pcl2anhd21/2Introvertive Anhedonia item 2, too independent (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2 integernominal0=no, 1=yes
pcl2anhd31/2Introvertive Anhedonia item 3, feel close to friends (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2 integernominal0=no, 1=yes
pcl2anhd3r1/2Reversed version of Introvertive Anhedonia item 3 (child LEAP-2 qnr at 16)itemchild leap2integer nominal0=no, 1=yes
pcl2anhd41/2Introvertive Anhedonia item 4, dancing seemed dull (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2 integernominal0=no, 1=yes
pcl2anhd51/2Introvertive Anhedonia item 5, trying new foods (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2 integernominal0=no, 1=yes
pcl2anhd5r1/2Reversed version of Introvertive Anhedonia item 5 (child LEAP-2 qnr at 16)itemchild leap2integer nominal0=no, 1=yes
pcl2anhd61/2Introvertive Anhedonia item 6, uncomfortable when touched (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2 integernominal0=no, 1=yes
pcl2anhd71/2Introvertive Anhedonia item 7, prefer watching television (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2 integernominal0=no, 1=yes
pcl2anhdt1/2Introvertive Anhedonia total scale (child LEAP-2 qnr at 16), 0-7derivedchild leap2decimal scale value0 to 7
pcl2cann011/2Cannabis item 1, ever tried cannabis (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integer nominal0=no, 1=yes
pcl2cann021/2Cannabis item 2, cannabis habit (child LEAP-2 qnr at 16), see value labelsitemchild leap2 integernominal1=only ever tried once or twice, 2=used to sometimes but not now, 3=sometimes use cannabis but less than once a week, 4=usually between one and six times a week, 5=usually use cannabis every day
pcl2cann031/2Cannabis item 3, age first tried cannabis (child LEAP-2 qnr at 16), see value labelsitemchild leap2 integerordinal1=14 or less, 2=15-16, 3=17+ years old
pcl2cann041/2Cannabis item 4, cannabis used total (child LEAP-2 qnr at 16), see value labelsitemchild leap2 integerordinal1=less than 5, 2=5-19, 3=20-49, 4=50-99, 5=100 or more
pcl2cann06a1/2Cannabis item 6a, cannabis: sick or sweaty (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integer nominal0=no, 1=yes
pcl2cann06b1/2Cannabis item 6b, cannabis: calm and relaxed (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integer nominal0=no, 1=yes
pcl2cann06c1/2Cannabis item 6c, cannabis: anxious or panicky(child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integer nominal0=no, 1=yes
pcl2cann06d1/2Cannabis item 6d, cannabis: spying or harm (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integer nominal0=no, 1=yes
pcl2cann06e1/2Cannabis item 6e, cannabis: want to laugh (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integer nominal0=no, 1=yes
pcl2cann06f1/2Cannabis item 6f, cannabis: hearing voices (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integer nominal0=no, 1=yes
pcl2cann06g1/2Cannabis item 6g, cannabis: seeing things (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integer nominal0=no, 1=yes
pcl2cann06h1/2Cannabis item 6h, cannabis: sociable and friendly (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2 integernominal0=no, 1=yes
pcl2cann071/2Cannabis item 7, cannabis last 12 months (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integer nominal0=no, 1=yes
pcl2cann081/2Cannabis item 8, cannabis: before midday (child LEAP-2 qnr at 16), see value labelsitemchild leap2 integerordinal0=never, 1=rarely, 2=from time to time, 3=often
pcl2cann091/2Cannabis item 9, cannabis: alone (child LEAP-2 qnr at 16), see value labelsitemchild leap2 integerordinal0=never, 1=rarely, 2=from time to time, 3=often
pcl2cann101/2Cannabis item 10, cannabis: memory problems (child LEAP-2 qnr at 16), see value labelsitemchild leap2 integerordinal0=never, 1=rarely, 2=from time to time, 3=often
pcl2cann111/2Cannabis item 11, cannabis: told to reduce use (child LEAP-2 qnr at 16), see value labelsitemchild leap2 integerordinal0=never, 1=rarely, 2=from time to time, 3=often
pcl2cann121/2Cannabis item 12, cannabis: tried and failed to reduce (child LEAP-2 qnr at 16), see value labelsitemchild leap2integerordinal0=never, 1=rarely, 2=from time to time, 3=often
pcl2cann131/2Cannabis item 13, cannabis: problems because of use (child LEAP-2 qnr at 16), see value labelsitemchild leap2integerordinal0=never, 1=rarely, 2=from time to time, 3=often
pcl2caps11/2CAPS item 1, hear noises (child LEAP-2 qnr at 16), 0=not at all .. 5=dailyitemchild leap2integer ordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcl2caps21/2CAPS item 2, someone touching (child LEAP-2 qnr at 16), 0=not at all .. 5=dailyitemchild leap2 integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcl2caps31/2CAPS item 3, hear sounds or music (child LEAP-2 qnr at 16), 0=not at all .. 5=dailyitemchild leap2 integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcl2caps41/2CAPS item 4, detect smells (child LEAP-2 qnr at 16), 0=not at all .. 5=dailyitemchild leap2 integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcl2caps51/2CAPS item 5, see things (child LEAP-2 qnr at 16), 0=not at all .. 5=dailyitemchild leap2integer ordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcl2caps61/2CAPS item 6, unusual burning sensations (child LEAP-2 qnr at 16), 0=not at all .. 5=dailyitemchild leap2 integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcl2caps71/2CAPS item 7, see shapes (child LEAP-2 qnr at 16), 0=not at all .. 5=dailyitemchild leap2integer ordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcl2caps81/2CAPS item 8, hear voices commenting (child LEAP-2 qnr at 16), 0=not at all .. 5=dailyitemchild leap2 integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcl2caps91/2CAPS item 9, notice smells or odours (child LEAP-2 qnr at 16), 0=not at all .. 5=dailyitemchild leap2 integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcl2capst1/2CAPS total scale (child LEAP-2 qnr at 16), 0-45 derivedchild leap2decimalscale value0 to 45
pcl2casi011/2Childhood Anxiety Sensitivity Index item 1, do not want others to know (child LEAP-2 qnr at 16), 0=not 1=quite 2=very true itemchild leap2integerordinal0=not true, 1=quite true, 2=very true
pcl2casi021/2Childhood Anxiety Sensitivity Index item 2, going crazy (child LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitem child leap2integerordinal0=not true, 1=quite true, 2=very true
pcl2casi031/2Childhood Anxiety Sensitivity Index item 3, feel shaky (child LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitem child leap2integerordinal0=not true, 1=quite true, 2=very true
pcl2casi041/2Childhood Anxiety Sensitivity Index item 4, going to faint (child LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitem child leap2integerordinal0=not true, 1=quite true, 2=very true
pcl2casi051/2Childhood Anxiety Sensitivity Index item 5, stay in control (child LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitem child leap2integerordinal0=not true, 1=quite true, 2=very true
pcl2casi061/2Childhood Anxiety Sensitivity Index item 6, scares me when heart beats (child LEAP-2 qnr at 16), 0=not 1=quite 2=very true itemchild leap2integerordinal0=not true, 1=quite true, 2=very true
pcl2casi071/2Childhood Anxiety Sensitivity Index item 7, stomach rumbles (child LEAP-2 qnr at 16), 0=not 1=quite 2=very true itemchild leap2integerordinal0=not true, 1=quite true, 2=very true
pcl2casi081/2Childhood Anxiety Sensitivity Index item 8, throw up (child LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitem child leap2integerordinal0=not true, 1=quite true, 2=very true
pcl2casi091/2Childhood Anxiety Sensitivity Index item 9, notice heart beating fast (child LEAP-2 qnr at 16), 0=not 1=quite 2=very true itemchild leap2integerordinal0=not true, 1=quite true, 2=very true
pcl2casi101/2Childhood Anxiety Sensitivity Index item 10, getting my breath (child LEAP-2 qnr at 16), 0=not 1=quite 2=very true itemchild leap2integerordinal0=not true, 1=quite true, 2=very true
pcl2casi111/2Childhood Anxiety Sensitivity Index item 11, stomach hurts (child LEAP-2 qnr at 16), 0=not 1=quite 2=very true itemchild leap2integerordinal0=not true, 1=quite true, 2=very true
pcl2casi121/2Childhood Anxiety Sensitivity Index item 12, cannot concentrate (child LEAP-2 qnr at 16), 0=not 1=quite 2=very true itemchild leap2integerordinal0=not true, 1=quite true, 2=very true
pcl2casi131/2Childhood Anxiety Sensitivity Index item 13, others my age can tell (child LEAP-2 qnr at 16), 0=not 1=quite 2=very true itemchild leap2integerordinal0=not true, 1=quite true, 2=very true
pcl2casi141/2Childhood Anxiety Sensitivity Index item 14, unusual feelings (child LEAP-2 qnr at 16), 0=not 1=quite 2=very true itemchild leap2integerordinal0=not true, 1=quite true, 2=very true
pcl2casi151/2Childhood Anxiety Sensitivity Index item 15, when I am afraid (child LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitem child leap2integerordinal0=not true, 1=quite true, 2=very true
pcl2casi161/2Childhood Anxiety Sensitivity Index item 16, scared when feel nervous (child LEAP-2 qnr at 16), 0=not 1=quite 2=very true itemchild leap2integerordinal0=not true, 1=quite true, 2=very true
pcl2casi171/2Childhood Anxiety Sensitivity Index item 17, do not like to show feelings (child LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemchild leap2integerordinal 0=not true, 1=quite true, 2=very true
pcl2casi181/2Childhood Anxiety Sensitivity Index item 18, funny feelings (child LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitem child leap2integerordinal0=not true, 1=quite true, 2=very true
pcl2casit1/2CASI Anxiety total scale (child LEAP-2 qnr at 16), 0-36derivedchild leap2decimalscale value 0 to 36
pcl2cgds011/2Cognitive Disorganisation item 1, easily confused (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2 integernominal0=no, 1=yes
pcl2cgds021/2Cognitive Disorganisation item 2, difficulty starting (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2 integernominal0=no, 1=yes
pcl2cgds031/2Cognitive Disorganisation item 3, mood goes up and down (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2 integernominal0=no, 1=yes
pcl2cgds041/2Cognitive Disorganisation item 4, dread going into a room (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2 integernominal0=no, 1=yes
pcl2cgds051/2Cognitive Disorganisation item 5, difficult to keep interested (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integernominal0=no, 1=yes
pcl2cgds061/2Cognitive Disorganisation item 6, difficulties controlling (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2 integernominal0=no, 1=yes
pcl2cgds071/2Cognitive Disorganisation item 7, distracted by daydreams (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2 integernominal0=no, 1=yes
pcl2cgds081/2Cognitive Disorganisation item 8, speech difficult to understand (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integernominal0=no, 1=yes
pcl2cgds091/2Cognitive Disorganisation item 9, distracted when you read (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2 integernominal0=no, 1=yes
pcl2cgds101/2Cognitive Disorganisation item 10, hard to make decisions (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2 integernominal0=no, 1=yes
pcl2cgds111/2Cognitive Disorganisation item 11, difficulty following conversation (child LEAP-2 qnr at 16), 1Y 0Nitem child leap2integernominal0=no, 1=yes
pcl2cgdst1/2Cognitive Disorganisation total scale (child LEAP-2 qnr at 16), 0-11derivedchild leap2decimal scale value0 to 11
pcl2data1/2Child LEAP-2 booklet data present at 16, 1Y 0N itemparent leap2integernominal0=no, 1=yes
pcl2distr11/2Distress item 1, after Paranoid Checklist (child LEAP-2 qnr at 16), 0=not .. 3=very distresseditemchild leap2integerordinal0=not distressed, 1=a bit distressed, 2=quite distressed, 3=very distressed
pcl2distr21/2Distress item 2, after CAPS (child LEAP-2 qnr at 16), 0=not .. 3=very distresseditemchild leap2 integerordinal0=not distressed, 1=a bit distressed, 2=quite distressed, 3=very distressed
pcl2distr31/2Distress item 3, after Grandiosity (child LEAP-2 qnr at 16), 0=not .. 3=very distresseditemchild leap2 integerordinal0=not distressed, 1=a bit distressed, 2=quite distressed, 3=very distressed
pcl2distr41/2Distress item 4, after Cognitive Disorganisation (child LEAP-2 qnr at 16), 0=not .. 3=very distresseditem child leap2integerordinal0=not distressed, 1=a bit distressed, 2=quite distressed, 3=very distressed
pcl2drug25a1/2Drug item 25a, sniffing: aerosols (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2 integerordinal0=no, 1=yes
pcl2drug25b1/2Drug item 25b, sniffing: gas (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2 integerordinal0=no, 1=yes
pcl2drug25c1/2Drug item 25c, sniffing: glue (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2 integerordinal0=no, 1=yes
pcl2drug25d1/2Drug item 25d, sniffing: solvents (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2 integerordinal0=no, 1=yes
pcl2drug25e1/2Drug item 25e, sniffing: poppers (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2 integerordinal0=no, 1=yes
pcl2drug26a1/2Drug item 26a, drugs tried: amphetamines (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integerordinal0=no, 1=yes
pcl2drug26b1/2Drug item 26b, drugs tried: ecstasy (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2 integerordinal0=no, 1=yes
pcl2drug26c1/2Drug item 26c, drugs tried: LSD (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2 integerordinal0=no, 1=yes
pcl2drug26d1/2Drug item 26d, drugs tried: mushrooms (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integerordinal0=no, 1=yes
pcl2drug26e1/2Drug item 26e, drugs tried: cocaine (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2 integerordinal0=no, 1=yes
pcl2drug26h1/2Drug item 26h, drugs tried: ketamine (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integerordinal0=no, 1=yes
pcl2grnd11/2Grandiosity and Delusion item 1, special mission (child LEAP-2 qnr at 16), 0=not at all .. 3=completelyitem child leap2integerordinal0=not at all, 1=somewhat, 2=a great deal, 3=completely
pcl2grnd21/2Grandiosity and Delusion item 2, great ideas (child LEAP-2 qnr at 16), 0=not at all .. 3=completelyitemchild leap2integerordinal0=not at all, 1=somewhat, 2=a great deal, 3=completely
pcl2grnd31/2Grandiosity and Delusion item 3, everything I do is great (child LEAP-2 qnr at 16), 0=not at all .. 3=completelyitem child leap2integerordinal0=not at all, 1=somewhat, 2=a great deal, 3=completely
pcl2grnd41/2Grandiosity and Delusion item 4, someone very important (child LEAP-2 qnr at 16), 0=not at all .. 3=completely itemchild leap2integerordinal0=not at all, 1=somewhat, 2=a great deal, 3=completely
pcl2grnd51/2Grandiosity and Delusion item 5, very special person (child LEAP-2 qnr at 16), 0=not at all .. 3=completelyitem child leap2integerordinal0=not at all, 1=somewhat, 2=a great deal, 3=completely
pcl2grnd61/2Grandiosity and Delusion item 6, special abilities (child LEAP-2 qnr at 16), 0=not at all .. 3=completelyitem child leap2integerordinal0=not at all, 1=somewhat, 2=a great deal, 3=completely
pcl2grnd71/2Grandiosity and Delusion item 7, more unique (child LEAP-2 qnr at 16), 0=not at all .. 3=completelyitemchild leap2integerordinal0=not at all, 1=somewhat, 2=a great deal, 3=completely
pcl2grnd81/2Grandiosity and Delusion item 8, everyone will know about me (child LEAP-2 qnr at 16), 0=not at all .. 3=completelyitem child leap2integerordinal0=not at all, 1=somewhat, 2=a great deal, 3=completely
pcl2grndt1/2Grandiosity and Delusion total scale (child LEAP-2 qnr at 16), 0-24derivedchild leap2decimal scale value0 to 24
pcl2hcl011/2HCL item 1, how are you feeling today (child LEAP-2 qnr at 16), 1=much worse .. 7=much better than usualitem child leap2integerordinal1=much worse, 2=worse, 3=a little worse, 4=neither better nor worse, 5=a little better, 6=better, 7=much better
pcl2hcl021/2HCL item 2, compared to other people (child LEAP-2 qnr at 16), 1=stable .. 4=repeated ups and downsitemchild leap2integernominal1=always rather stable and even, 2=generally higher than for other people, 3=generally lower than for other people, 4=repeatedly shows periods of ups and downs
pcl2hcl031/2HCL item 3, need less sleep (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integernominal 0=no, 1=yes
pcl2hcl041/2HCL item 4, enjoy work more (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integernominal 0=no, 1=yes
pcl2hcl051/2HCL item 5, travel more (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integernominal 0=no, 1=yes
pcl2hcl061/2HCL item 6, spend more money (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integernominal 0=no, 1=yes
pcl2hcl071/2HCL item 7, take more risks (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integernominal 0=no, 1=yes
pcl2hcl081/2HCL item 8, physically more active (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integer nominal0=no, 1=yes
pcl2hcl091/2HCL item 9, less shy (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integernominal 0=no, 1=yes
pcl2hcl101/2HCL item 10, more colourful (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integernominal 0=no, 1=yes
pcl2hcl111/2HCL item 11, think faster (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integernominal 0=no, 1=yes
pcl2hcl121/2HCL item 12, make more jokes (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integernominal 0=no, 1=yes
pcl2hcl131/2HCL item 13, more quarrels (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integernominal 0=no, 1=yes
pcl2hcl141/2HCL item 14, more optimistic (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integernominal 0=no, 1=yes
pcl2hcl151/2HCL item 15, more cigarettes (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integernominal 0=no, 1=yes
pcl2hcl161/2HCL item 16, more alcohol (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integernominal 0=no, 1=yes
pcl2hcl171/2HCL item 17, more drugs (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integernominal 0=no, 1=yes
pcl2hcl18a1/2HCL item 18a, impact on family life (child LEAP-2 qnr at 16), 1=pos and neg 2=pos 3=neg 0=noneitemchild leap2integernominal0=no impact, 1=positive and negative, 2=positive, 3=negative
pcl2hcl18b1/2HCL item 18b, impact on social life (child LEAP-2 qnr at 16), 1=pos and neg 2=pos 3=neg 0=noneitemchild leap2integernominal0=no impact, 1=positive and negative, 2=positive, 3=negative
pcl2hcl18c1/2HCL item 18c, impact on work/school (child LEAP-2 qnr at 16), 1=pos and neg 2=pos 3=neg 0=noneitemchild leap2integernominal0=no impact, 1=positive and negative, 2=positive, 3=negative
pcl2hcl18d1/2HCL item 18d, impact on leisure (child LEAP-2 qnr at 16), 1=pos and neg 2=pos 3=neg 0=noneitemchild leap2 integernominal0=no impact, 1=positive and negative, 2=positive, 3=negative
pcl2hcl191/2HCL item 19, how do people react (child LEAP-2 qnr at 16), 1=pos 2=neutral 3=neg 4=pos and neg 0=noneitem child leap2integernominal0=no reactions, 1=positively, 2=neutral, 3=negatively, 4=positively and negatively
pcl2hcl201/2HCL item 20, how long do highs last (child LEAP-2 qnr at 16), 1=1 day .. 5=over a month 0=DKitemchild leap2 integernominal0=DK, 1=1 day, 2=2-3 days, 3=4-7 days, 4=longer than a week, 5=longer than a month
pcl2hcl211/2HCL item 21, highs in last year (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integer nominal0=no, 1=yes
pcl2hcl221/2HCL item 22, days spent in highs (child LEAP-2 qnr at 16), see value labelsitemchild leap2integer ordinal1=3 or less, 2=4-10, 3=11-20, 4=21-50, 5=51-100, 6=101-200, 7=201-300, 8=over 300
pcl2hclhft1/2HCL high feelings total scale (child LEAP-2 qnr at 16), 0-15derivedchild leap2decimalscale value0 to 15
pcl2hsc011/2HSC item 1, notice small changes (child LEAP-2 qnr at 16), 0=not at all .. 6=extremelyitemchild leap2 integerordinal0=not at all, 1, 2, 3=moderately, 4, 5, 6=extremely
pcl2hsc021/2HSC item 2, loud noises make uncomfortable (child LEAP-2 qnr at 16), 0=not at all .. 6=extremelyitemchild leap2integerordinal0=not at all, 1, 2, 3=moderately, 4, 5, 6=extremely
pcl2hsc031/2HSC item 3, nice smells (child LEAP-2 qnr at 16), 0=not at all .. 6=extremelyitemchild leap2integer ordinal0=not at all, 1, 2, 3=moderately, 4, 5, 6=extremely
pcl2hsc041/2HSC item 4, nervous when a lot to do (child LEAP-2 qnr at 16), 0=not at all .. 6=extremelyitemchild leap2 integerordinal0=not at all, 1, 2, 3=moderately, 4, 5, 6=extremely
pcl2hsc051/2HSC item 5, music (child LEAP-2 qnr at 16), 0=not at all .. 6=extremelyitemchild leap2integer ordinal0=not at all, 1, 2, 3=moderately, 4, 5, 6=extremely
pcl2hsc061/2HSC item 6, annoyed when too many things (child LEAP-2 qnr at 16), 0=not at all .. 6=extremelyitemchild leap2integerordinal0=not at all, 1, 2, 3=moderately, 4, 5, 6=extremely
pcl2hsc071/2HSC item 7, TV violence (child LEAP-2 qnr at 16), 0=not at all .. 6=extremelyitemchild leap2integer ordinal0=not at all, 1, 2, 3=moderately, 4, 5, 6=extremely
pcl2hsc081/2HSC item 8, unpleasant when a lot going on (child LEAP-2 qnr at 16), 0=not at all .. 6=extremelyitemchild leap2integerordinal0=not at all, 1, 2, 3=moderately, 4, 5, 6=extremely
pcl2hsc091/2HSC item 9, do not like change (child LEAP-2 qnr at 16), 0=not at all .. 6=extremelyitemchild leap2 integerordinal0=not at all, 1, 2, 3=moderately, 4, 5, 6=extremely
pcl2hsc101/2HSC item 10, nice tastes (child LEAP-2 qnr at 16), 0=not at all .. 6=extremelyitemchild leap2integer ordinal0=not at all, 1, 2, 3=moderately, 4, 5, 6=extremely
pcl2hsc111/2HSC item 11, do not like loud noises (child LEAP-2 qnr at 16), 0=not at all .. 6=extremelyitemchild leap2 integerordinal0=not at all, 1, 2, 3=moderately, 4, 5, 6=extremely
pcl2hsc121/2HSC item 12, nervous when observed (child LEAP-2 qnr at 16), 0=not at all .. 6=extremelyitemchild leap2 integerordinal0=not at all, 1, 2, 3=moderately, 4, 5, 6=extremely
pcl2hscaest1/2HSC aesthetic sensitivity subscale (child LEAP-2 qnr at 16), 0-24 derivedchild leap2decimalscale value0 to 24
pcl2hsceoet1/2HSC ease of excitation subscale (child LEAP-2 qnr at 16), 0-30 derivedchild leap2decimalscale value0 to 30
pcl2hsclstt1/2HSC low sensory threshold subscale (child LEAP-2 qnr at 16), 0-18 derivedchild leap2decimalscale value0 to 18
pcl2hsct1/2HSC overall total scale (child LEAP-2 qnr at 16), 0-72 derivedchild leap2decimalscale value0 to 72
pcl2lfev01n1/2Life Events item 1, loss of parent job, negative rating (child LEAP-2 qnr at 16), see value labelsitemchild leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcl2lfev02n1/2Life Events item 2, parent separation, negative rating (child LEAP-2 qnr at 16), see value labelsitemchild leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcl2lfev03n1/2Life Events item 3, drugs, negative rating (child LEAP-2 qnr at 16), see value labelsitemchild leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcl2lfev03p1/2Life Events item 3, drugs, positive rating (child LEAP-2 qnr at 16), see value labelsitemchild leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcl2lfev04n1/2Life Events item 4, death of friend, negative rating (child LEAP-2 qnr at 16), see value labelsitemchild leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcl2lfev05n1/2Life Events item 5, hospitalised, negative rating (child LEAP-2 qnr at 16), see value labelsitemchild leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcl2lfev06n1/2Life Events item 6, sent away, negative rating (child LEAP-2 qnr at 16), see value labelsitemchild leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcl2lfev06p1/2Life Events item 6, sent away, positive rating (child LEAP-2 qnr at 16), see value labelsitemchild leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcl2lfev07n1/2Life Events item 7, breaking up, negative rating (child LEAP-2 qnr at 16), see value labelsitemchild leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcl2lfev07p1/2Life Events item 7, breaking up, positive rating (child LEAP-2 qnr at 16), see value labelsitemchild leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcl2lfev08n1/2Life Events item 8, sibling hospitalised, negative rating (child LEAP-2 qnr at 16), see value labelsitemchild leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcl2lfev09n1/2Life Events item 9, school suspension, negative rating (child LEAP-2 qnr at 16), see value labelsitemchild leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcl2lfev10n1/2Life Events item 10, failing exam, negative rating (child LEAP-2 qnr at 16), see value labelsitemchild leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcl2lfev12n1/2Life Events item 12, parent hospitalised, negative rating (child LEAP-2 qnr at 16), see value labelsitemchild leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcl2lfev14n1/2Life Events item 14, parent income decreased, negative rating (child LEAP-2 qnr at 16), see value labelsitemchild leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcl2lfev16n1/2Life Events item 16, achievement, negative rating (child LEAP-2 qnr at 16), see value labelsitemchild leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcl2lfev16p1/2Life Events item 16, achievement, positive rating (child LEAP-2 qnr at 16), see value labelsitemchild leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcl2lfev17n1/2Life Events item 17, parent arguments decreased, negative rating (child LEAP-2 qnr at 16), see value labelsitemchild leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcl2lfev17p1/2Life Events item 17, parent arguments decreased, positive rating (child LEAP-2 qnr at 16), see value labelsitemchild leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcl2lfev18p1/2Life Events item 18, joined church, positive rating (child LEAP-2 qnr at 16), see value labelsitemchild leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcl2lfev19n1/2Life Events item 19, started dating, negative rating (child LEAP-2 qnr at 16), see value labelsitemchild leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcl2lfev19p1/2Life Events item 19, started dating, positive rating (child LEAP-2 qnr at 16), see value labelsitemchild leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcl2lfev20n1/2Life Events item 20, new school, negative rating (child LEAP-2 qnr at 16), see value labelsitemchild leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcl2lfev20p1/2Life Events item 20, new school, positive rating (child LEAP-2 qnr at 16), see value labelsitemchild leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
pcl2lfevnat1/2Life events: count of negative events that affected twin (child LEAP-2 qnr at 16), see value labelsderivedchild leap2integerordinal0, 1, 2, 3, 4, 5 or more
pcl2lfevnnt1/2Life events: count of negative events that occurred with no effect on twin (child LEAP-2 qnr at 16), see value labelsderivedchild leap2integerordinal0, 1, 2, 3 or more
pcl2lfevpat1/2Life events: count of positive events that affected twin (child LEAP-2 qnr at 16), see value labelsderivedchild leap2integerordinal0, 1, 2, 3, 4 or more
pcl2lfevpnt1/2Life events: count of positive events that occurred with no effect on twin (child LEAP-2 qnr at 16), see value labelsderivedchild leap2integerordinal0, 1, 2, 3 or more
pcl2LLCage1 Age of twin when twin 16 year LEAP-2 booklet returned (for use in LLC TRE), months derivedadminintegerquantitativeapprox. 187 to 222 (months)
pcl2LLCdate1 Date when twin 16 year LEAP-2 booklet returned (for use in LLC TRE), yyyy-mm string derivedadminstringdate valueapprox. '2012-06' to '2012-11'
pcl2mfq011/2MFQ item 1, miserable or unhappy (child LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemchild leap2 integerordinal0=not true, 1=quite true, 2=very true
pcl2mfq021/2MFQ item 2, did not enjoy anything (child LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemchild leap2 integerordinal0=not true, 1=quite true, 2=very true
pcl2mfq031/2MFQ item 3, felt so tired (child LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemchild leap2integer ordinal0=not true, 1=quite true, 2=very true
pcl2mfq041/2MFQ item 4, very restless (child LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemchild leap2integer ordinal0=not true, 1=quite true, 2=very true
pcl2mfq051/2MFQ item 5, felt no good (child LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemchild leap2integer ordinal0=not true, 1=quite true, 2=very true
pcl2mfq061/2MFQ item 6, cried a lot (child LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemchild leap2integer ordinal0=not true, 1=quite true, 2=very true
pcl2mfq071/2MFQ item 7, hard to think properly (child LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemchild leap2 integerordinal0=not true, 1=quite true, 2=very true
pcl2mfq081/2MFQ item 8, hated myself (child LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemchild leap2integer ordinal0=not true, 1=quite true, 2=very true
pcl2mfq091/2MFQ item 9, felt bad person (child LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemchild leap2 integerordinal0=not true, 1=quite true, 2=very true
pcl2mfq101/2MFQ item 10, felt lonely (child LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemchild leap2integer ordinal0=not true, 1=quite true, 2=very true
pcl2mfq111/2MFQ item 11, nobody loved me (child LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemchild leap2 integerordinal0=not true, 1=quite true, 2=very true
pcl2mfq121/2MFQ item 12, never as good as others (child LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemchild leap2 integerordinal0=not true, 1=quite true, 2=very true
pcl2mfq131/2MFQ item 13, did everything wrong (child LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemchild leap2 integerordinal0=not true, 1=quite true, 2=very true
pcl2mfqt1/2MFQ total scale (child LEAP-2 qnr at 16), 0-26 derivedchild leap2decimalscale value0 to 26
pcl2plik011/2PLIK item 1, others read thoughts (child LEAP-2 qnr at 16), 2=definitely 1=maybe 0=noitemchild leap2 integerordinal0=no, 1=yes maybe, 2=yes definitely
pcl2plik021/2PLIK item 2, others read thoughts: how often (child LEAP-2 qnr at 16), 0=not at all .. 4=nearly every dayitem child leap2integerordinal0=not at all, 1=once or twice, 2=less than once a month, 3=more than once a month, 4=nearly every day
pcl2plik031/2PLIK item 3, others read thoughts: upset (child LEAP-2 qnr at 16), 0=not at all .. 3=very upsetitemchild leap2integerordinal0=no not at all, 1=yes a bit, 2=yes quite, 3=yes very upset
pcl2plik041/2PLIK item 4, others read thoughts: special powers (child LEAP-2 qnr at 16), 2=definitely 1=maybe 0=noitem child leap2integerordinal0=no, 1=yes maybe, 2=yes definitely
pcl2plik051/2PLIK item 5, special messages (child LEAP-2 qnr at 16), 2=definitely 1=maybe 0=noitemchild leap2 integerordinal0=no, 1=yes maybe, 2=yes definitely
pcl2plik061/2PLIK item 6, special messages: how often (child LEAP-2 qnr at 16), 0=not at all .. 4=nearly every dayitem child leap2integerordinal0=not at all, 1=once or twice, 2=less than once a month, 3=more than once a month, 4=nearly every day
pcl2plik071/2PLIK item 7, special messages: upset (child LEAP-2 qnr at 16), 0=not at all .. 3=very upsetitemchild leap2 integerordinal0=no not at all, 1=yes a bit, 2=yes quite, 3=yes very upset
pcl2plik081/2PLIK item 8, being followed (child LEAP-2 qnr at 16), 2=definitely 1=maybe 0=noitemchild leap2 integerordinal0=no, 1=yes maybe, 2=yes definitely
pcl2plik091/2PLIK item 9, being followed: how often (child LEAP-2 qnr at 16), 0=not at all .. 4=nearly every dayitem child leap2integerordinal0=not at all, 1=once or twice, 2=less than once a month, 3=more than once a month, 4=nearly every day
pcl2plik101/2PLIK item 10, being followed: upset (child LEAP-2 qnr at 16), 0=not at all .. 3=very upsetitemchild leap2 integerordinal0=no not at all, 1=yes a bit, 2=yes quite, 3=yes very upset
pcl2plik111/2PLIK item 11, heard voices (child LEAP-2 qnr at 16), 2=definitely 1=maybe 0=noitemchild leap2 integerordinal0=no, 1=yes maybe, 2=yes definitely
pcl2plik121/2PLIK item 12, heard voices: how often (child LEAP-2 qnr at 16), 0=not at all .. 4=nearly every dayitem child leap2integerordinal0=not at all, 1=once or twice, 2=less than once a month, 3=more than once a month, 4=nearly every day
pcl2plik131/2PLIK item 13, heard voices: upset (child LEAP-2 qnr at 16), 0=not at all .. 3=very upsetitemchild leap2 integerordinal0=no not at all, 1=yes a bit, 2=yes quite, 3=yes very upset
pcl2plik14a1/2PLIK item 14a, heard voices: drugs (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integer nominal0=no, 1=yes
pcl2plik14b1/2PLIK item 14b, heard voices: temperature (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integer nominal0=no, 1=yes
pcl2plik14c1/2PLIK item 14c, heard voices: asleep (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integer nominal0=no, 1=yes
pcl2plik15a1/2PLIK item 15a, heard voices: call out name (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integer nominal0=no, 1=yes
pcl2plik15b1/2PLIK item 15b, heard voices: comment (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integer nominal0=no, 1=yes
pcl2plik15c1/2PLIK item 15c, heard voices: talk to another (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2 integernominal0=no, 1=yes
pcl2plik15d1/2PLIK item 15d, heard voices: something nice (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2 integernominal0=no, 1=yes
pcl2plik15e1/2PLIK item 15e, heard voices: something horrible (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2 integernominal0=no, 1=yes
pcl2plik161/2PLIK item 16, under control (child LEAP-2 qnr at 16), 2=definitely 1=maybe 0=noitemchild leap2 integerordinal0=no, 1=yes maybe, 2=yes definitely
pcl2plik171/2PLIK item 17, under control: how often (child LEAP-2 qnr at 16), 0=not at all .. 4=nearly every dayitem child leap2integerordinal0=not at all, 1=once or twice, 2=less than once a month, 3=more than once a month, 4=nearly every day
pcl2plik181/2PLIK item 18, under control: who (child LEAP-2 qnr at 16), 1=God or religious figure 2=otheritemchild leap2 integernominal1=God or another religious figure, 2=someone or something else
pcl2plik191/2PLIK item 19, under control: upset (child LEAP-2 qnr at 16), 0=not at all .. 3=very upsetitemchild leap2 integerordinal0=no not at all, 1=yes a bit, 2=yes quite, 3=yes very upset
pcl2plik201/2PLIK item 20, seen something (child LEAP-2 qnr at 16), 2=definitely 1=maybe 0=noitemchild leap2 integerordinal0=no, 1=yes maybe, 2=yes definitely
pcl2plik211/2PLIK item 21, seen something: how often (child LEAP-2 qnr at 16), 0=not at all .. 4=nearly every dayitem child leap2integerordinal0=not at all, 1=once or twice, 2=less than once a month, 3=more than once a month, 4=nearly every day
pcl2plik221/2PLIK item 22, seen something: upset (child LEAP-2 qnr at 16), 0=not at all .. 3=very upsetitemchild leap2 integerordinal0=no not at all, 1=yes a bit, 2=yes quite, 3=yes very upset
pcl2plik23a1/2PLIK item 23a, seen something: drugs (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integer nominal0=no, 1=yes
pcl2plik23b1/2PLIK item 23b, seen something: temperature (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integer nominal0=no, 1=yes
pcl2plik23c1/2PLIK item 23c, seen something: asleep (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integer nominal0=no, 1=yes
pcl2plik24a1/2PLIK item 24a, thoughts: taken out (child LEAP-2 qnr at 16), 2=definitely 1=maybe 0=noitemchild leap2 integerordinal0=no, 1=yes maybe, 2=yes definitely
pcl2plik24b1/2PLIK item 24b, thoughts: inserted into (child LEAP-2 qnr at 16), 2=definitely 1=maybe 0=noitemchild leap2integerordinal0=no, 1=yes maybe, 2=yes definitely
pcl2plik24c1/2PLIK item 24c, thoughts: so loud (child LEAP-2 qnr at 16), 2=definitely 1=maybe 0=noitemchild leap2 integerordinal0=no, 1=yes maybe, 2=yes definitely
pcl2plik251/2PLIK item 25, thoughts: how often (child LEAP-2 qnr at 16), 0=not at all .. 4=nearly every dayitemchild leap2integerordinal0=not at all, 1=once or twice, 2=less than once a month, 3=more than once a month, 4=nearly every day
pcl2plik261/2PLIK item 26, thoughts: upset (child LEAP-2 qnr at 16), 0=not at all .. 3=very upsetitemchild leap2 integerordinal0=no not at all, 1=yes a bit, 2=yes quite, 3=yes very upset
pcl2plik271/2PLIK item 27, special powers (child LEAP-2 qnr at 16), 2=definitely 1=maybe 0=noitemchild leap2 integerordinal0=no, 1=yes maybe, 2=yes definitely
pcl2plik281/2PLIK item 28, special powers: how often (child LEAP-2 qnr at 16), 0=not at all .. 4=nearly every dayitem child leap2integerordinal0=not at all, 1=once or twice, 2=less than once a month, 3=more than once a month, 4=nearly every day
pcl2plik291/2PLIK item 29, special powers: upset (child LEAP-2 qnr at 16), 0=not at all .. 3=very upsetitemchild leap2 integerordinal0=no not at all, 1=yes a bit, 2=yes quite, 3=yes very upset
pcl2plikt1/2PLIKS total scale (child LEAP-2 qnr at 16), 0-20 derivedchild leap2 decimalscale value0 to 20
pcl2prnd011/2Paranoid Checklist item 1, on my guard (child LEAP-2 qnr at 16), 0=not at all .. 5=dailyitemchild leap2 integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcl2prnd021/2Paranoid Checklist item 2, negative comments (child LEAP-2 qnr at 16), 0=not at all .. 5=dailyitemchild leap2integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcl2prnd031/2Paranoid Checklist item 3, irritate me (child LEAP-2 qnr at 16), 0=not at all .. 5=dailyitemchild leap2 integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcl2prnd041/2Paranoid Checklist item 4, observed or followed (child LEAP-2 qnr at 16), 0=not at all .. 5=dailyitemchild leap2integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcl2prnd051/2Paranoid Checklist item 5, upset me (child LEAP-2 qnr at 16), 0=not at all .. 5=dailyitemchild leap2 integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcl2prnd061/2Paranoid Checklist item 6, looking unfriendly (child LEAP-2 qnr at 16), 0=not at all .. 5=dailyitemchild leap2integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcl2prnd071/2Paranoid Checklist item 7, hostile towards me (child LEAP-2 qnr at 16), 0=not at all .. 5=dailyitemchild leap2integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcl2prnd081/2Paranoid Checklist item 8, bad things said (child LEAP-2 qnr at 16), 0=not at all .. 5=dailyitemchild leap2 integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcl2prnd091/2Paranoid Checklist item 9, bad intentions (child LEAP-2 qnr at 16), 0=not at all .. 5=dailyitemchild leap2 integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcl2prnd101/2Paranoid Checklist item 10, has it in for me (child LEAP-2 qnr at 16), 0=not at all .. 5=dailyitemchild leap2integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcl2prnd111/2Paranoid Checklist item 11, harm me (child LEAP-2 qnr at 16), 0=not at all .. 5=dailyitemchild leap2 integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcl2prnd121/2Paranoid Checklist item 12, conspiring against me (child LEAP-2 qnr at 16), 0=not at all .. 5=dailyitemchild leap2integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcl2prnd131/2Paranoid Checklist item 13, laughing at me (child LEAP-2 qnr at 16), 0=not at all .. 5=dailyitemchild leap2 integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcl2prnd141/2Paranoid Checklist item 14, under threat (child LEAP-2 qnr at 16), 0=not at all .. 5=dailyitemchild leap2 integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcl2prnd151/2Paranoid Checklist item 15, coded messages about me (child LEAP-2 qnr at 16), 0=not at all .. 5=dailyitem child leap2integerordinal0=not at all, 1=rarely, 2=once a month, 3=once a week, 4=several times a week, 5=daily
pcl2prndt1/2Paranoid Checklist total scale (child LEAP-2 qnr at 16), 0-75derivedchild leap2decimalscale value0 to 75
pcl2smok11/2Smoking item 1, ever smoked cigarette (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integer nominal0=no, 1=yes
pcl2smok21/2Smoking item 2, cig smoking habit (child LEAP-2 qnr at 16), see value labelsitemchild leap2integernominal1=only ever tried once or twice, 2=used to smoke sometimes but not now, 3=sometimes smoke but less than one a week, 4=between one and six a week, 5=more than six a week but not every day, 6=one or more cigarettes every day
pcl2smok31/2Smoking item 3, age first smoked cig (child LEAP-2 qnr at 16), see value labelsitemchild leap2 integerordinal1=less than 10 years, 2=10-12, 3=13-14, 4=15-16, 5=17+ years old
pcl2smok41/2Smoking item 4, cigarettes smoked total (child LEAP-2 qnr at 16), see value labelsitemchild leap2 integerordinal1=less than 5, 2=5-19, 3=20-49, 4=50-99, 5=100 or more
pcl2smok51/2Smoking item 5, smoked cig last 12 months (child LEAP-2 qnr at 16), 1Y 0Nitemchild leap2integer nominal0=no, 1=yes
pcl2smok61/2Smoking item 6, cigarettes per day (child LEAP-2 qnr at 16), see value labelsitemchild leap2 integernominal1=1-5, 2=6-10, 3=11-20, 4=20 or more
pcl2teps011/2TEPS item 1, something exciting coming up (child LEAP-2 qnr at 16), 0=very false .. 5=very trueitemchild leap2integerordinal0=very false, 1=moderately false, 2=slightly false, 3=slightly true, 4=moderately true, 5=very true
pcl2teps021/2TEPS item 2, eating my favourite food (child LEAP-2 qnr at 16), 0=very false .. 5=very trueitemchild leap2integerordinal0=very false, 1=moderately false, 2=slightly false, 3=slightly true, 4=moderately true, 5=very true
pcl2teps031/2TEPS item 3, do not look forward (child LEAP-2 qnr at 16), 0=very false .. 5=very trueitemchild leap2 integerordinal0=very false, 1=moderately false, 2=slightly false, 3=slightly true, 4=moderately true, 5=very true
pcl2teps03r1/2Reversed version of TEPS item 3 (child LEAP-2 qnr at 16)itemchild leap2integerordinal 0=very false, 1=moderately false, 2=slightly false, 3=slightly true, 4=moderately true, 5=very true
pcl2teps041/2TEPS item 4, amusement park (child LEAP-2 qnr at 16), 0=very false .. 5=very trueitemchild leap2 integerordinal0=very false, 1=moderately false, 2=slightly false, 3=slightly true, 4=moderately true, 5=very true
pcl2teps051/2TEPS item 5, major holiday (child LEAP-2 qnr at 16), 0=very false .. 5=very trueitemchild leap2 integerordinal0=very false, 1=moderately false, 2=slightly false, 3=slightly true, 4=moderately true, 5=very true
pcl2teps061/2TEPS item 6, something tasty (child LEAP-2 qnr at 16), 0=very false .. 5=very trueitemchild leap2 integerordinal0=very false, 1=moderately false, 2=slightly false, 3=slightly true, 4=moderately true, 5=very true
pcl2teps071/2TEPS item 7, pleasurable experience (child LEAP-2 qnr at 16), 0=very false .. 5=very trueitemchild leap2 integerordinal0=very false, 1=moderately false, 2=slightly false, 3=slightly true, 4=moderately true, 5=very true
pcl2teps081/2TEPS item 8, look forward (child LEAP-2 qnr at 16), 0=very false .. 5=very trueitemchild leap2 integerordinal0=very false, 1=moderately false, 2=slightly false, 3=slightly true, 4=moderately true, 5=very true
pcl2teps091/2TEPS item 9, ordering off menu (child LEAP-2 qnr at 16), 0=very false .. 5=very trueitemchild leap2 integerordinal0=very false, 1=moderately false, 2=slightly false, 3=slightly true, 4=moderately true, 5=very true
pcl2teps101/2TEPS item 10, new movie (child LEAP-2 qnr at 16), 0=very false .. 5=very trueitemchild leap2integer ordinal0=very false, 1=moderately false, 2=slightly false, 3=slightly true, 4=moderately true, 5=very true
pcl2tepst1/2TEPS Hedonia total scale (child LEAP-2 qnr at 16), 0-50derivedchild leap2decimalscale value 0 to 50
pclotrm1/2LOT-R Optimism overall mean score (child web at 16), 1-5derivedchild webdecimalscale value 1 to 5
pclsfamm1/2Life Satisfaction Family mean score (child web at 16), 1-6derivedchild webdecimalscale value1 to 6
pclsfrnm1/2Life Satisfaction Friends mean score (child web at 16), 1-6derivedchild webdecimalscale value1 to 6
pclslvem1/2Life Satisfaction Living Environment mean score (child web at 16), 1-6derivedchild webdecimal scale value1 to 6
pclsm1/2Life Satisfaction overall mean score (child web at 16), 1-6derivedchild webdecimalscale value 1 to 6
pclsschm1/2Life Satisfaction School mean score (child web at 16), 1-6derivedchild webdecimalscale value1 to 6
pclsslfm1/2Life Satisfaction Self mean score (child web at 16), 1-6derivedchild webdecimalscale value 1 to 6
pcmainm1/2PISA Maths Interest overall mean score (child web at 16), 1-4derivedchild webdecimalscale value1 to 4
pcmaset1/2PISA Maths Self-Efficacy total scale (child web at 16), 0-24derivedchild webdecimalscale value0 to 24
pcmatmt1/2PISA Time Spent on Maths total scale (child web at 16), 0-12derivedchild webdecimalscale value0 to 12
pcnlatm1/2Number Line test mean item answer time (child web at 16), secondsderivedchild webdecimal quantitativeapprox. 2-15 seconds
pcnldata1/2Number Line test data present (child web at 16), 1Y 0Nitemchild webintegernominal 0=no, 1=yes
pcnlquan1/2Number Line test number of questions answered (child web at 16)itemchild webinteger quantitativeup to 22
pcnlsess1/2Number Line test number of sessions used (child web at 16)itemchild webintegerquantitative approx. 1-4
pcnlstat1/2Number Line web test status (twin web at 16), see value labelsitemchild webintegernominal 0=not started (no data), 1=started but not finished (no data), 2=finished (data present), 3=abandoned or crashed or serial timeouts (data excluded), 4=random responses (data excluded)
pcnltmel1/2Number Line test time elapsed (child web at 16), secondsitemchild webintegerquantitative approx. 50-600 seconds
pcnltot1/2Number Line test total score (child web at 16), mean absolute deviationitemchild webdecimal scale valueapprox. 10-100
pcnlXXan1/2 (XX is the item number: 01-22)Number Line test item XX answer (child web at 16), position on line 0-1000 or -4=crash itemchild webintegerquantitative0 to 1000 (position on line), -4=crash
pcnlXXsc1/2 (XX is the item number: 01-22)Number Line test item XX score (child web at 16), deviation from correct numberitem child webintegerquantitativeany integer between -1000 and +1000
pcnsatm1/2Number Sense test mean item answer time (child web at 16), secondsderivedchild webdecimal quantitativeapprox. 0.5-1.5 seconds
pcnsdata1/2Number Sense test data present (child web at 16), 1Y 0Nitemchild webintegernominal 0=no, 1=yes
pcnsquan1/2Number Sense test number of questions answered (child web at 16)itemchild webinteger quantitativeup to 150
pcnsstat1/2Number Sense web test status (twin web at 16), see value labelsitemchild webintegernominal 0=not started (no data), 1=started but not finished (no data), 2=finished (data present), 3=abandoned or crashed or serial timeouts (data excluded), 4=random responses (data excluded)
pcnstmel1/2Number Sense test time elapsed (child web at 16), secondsitemchild webintegerquantitative approx. 50-250 seconds
pcnstot1/2Number Sense test total score (child web at 16), 0-150itemchild webintegerscale value 0 to 150
pcnswebcor1/2Number Sense Weber fraction corrected (child web at 16), 0-1derivedchild webdecimalscale value0 to 1
pcnswebunc1/2Number Sense Weber fraction uncorrected (child web at 16), 0-1derivedchild webdecimalscale value0 to 1
pcnsXXXan1/2 (XXX is the item number: 001-150)Number Sense test item XXX answer (child web at 16), 1=blue 2=yellow -1=timeout -4=crash itemchild webintegernominal1=blue, 2=yellow, -1=timeout, -4=item crash
pcnsXXXsc1/2 (XXX is the item number: 001-150)Number Sense test item XXX score (child web at 16), 1=correct 0=wrongitem child webintegerordinal0=incorrect, 1=correct
pcpacom1/2Parental Control overall mean score (child web at 16), 1-5derivedchild webdecimalscale value1 to 5
pcpamom1/2Parental Monitoring overall mean score (child web at 16), 1-4derivedchild webdecimalscale value1 to 4
pcpersagrm1/2Personality Agreeableness mean score (child web at 16), 1-5derivedchild webdecimalscale value1 to 5
pcpersconm1/2Personality Conscientiousness mean score (child web at 16), 1-5derivedchild webdecimal scale value1 to 5
pcpersextm1/2Personality Extraversion mean score (child web at 16), 1-5derivedchild webdecimalscale value1 to 5
pcpersneum1/2Personality Neuroticism mean score (child web at 16), 1-5derivedchild webdecimalscale value1 to 5
pcpersopem1/2Personality Openness mean score (child web at 16), 1-5derivedchild webdecimalscale value 1 to 5
pcpevit1/2Peer Victimisation total scale (child web at 16), 0-12derivedchild webdecimalscale value 0 to 12
pcpsatm1/2Passages test mean item answer time (child web at 16), secondsderivedchild webdecimal quantitativeapprox. 5-100 seconds
pcpsdata1/2Passages test data present (child web at 16), 1Y 0N itemchild webintegernominal0=no, 1=yes
pcpsquan1/2Passages test number of questions answered (child web at 16)itemchild webinteger quantitativeup to 28
pcpssess1/2Passages test number of sessions used (child web at 16)itemchild webintegerquantitative approx. 1-4
pcpsstat1/2Passages web test status (twin web at 16), see value labelsitemchild webintegernominal 0=not started (no data), 1=started but not finished (no data), 2=finished (data present), 3=abandoned or crashed or serial timeouts (data excluded), 4=random responses (data excluded)
pcpstmel1/2Passages test time elapsed (child web at 16), secondsitemchild webintegerquantitative approx. 200-2000 seconds
pcpstot1/2Passages test total score (child web at 16), 0-26 itemchild webintegerscale value0 to 26
pcpsXYYan1/2 (X is the passage 1-2, YY is the passage item number 01-13) Passages test passage X item YY answer (child web at 16), 1/2/3/4=answer selected -4=crashitemchild webinteger nominal1=A, 2=B, 3=C, 4=D, -4=item crashed
pcpsXYYsc1/2 (X is the passage 1-2, YY is the passage item number 01-13) Passages test passage X item YY score (child web at 16), 1=correct 0=wrong itemchild webintegerordinal0=incorrect, 1=correct
pcpubm1/2Puberty scale, for both sexes (child web at 16), 1-4 derivedchild webdecimalscale value1 to 4
pcpvatm1/2PVT test mean item answer time (child web at 16), secondsderivedchild webdecimal quantitativeapprox. 1-6 seconds
pcpvdata1/2PVT test data present (child web at 16), 1Y 0N itemchild webintegernominal0=no, 1=yes
pcpvquan1/2PVT test number of questions answered (child web at 16)itemchild webintegerquantitative up to 48
pcpvsess1/2PVT test number of sessions used (child web at 16) itemchild webintegerquantitativeapprox. 1-4
pcpvstat1/2PVT web test status (twin web at 16), see value labelsitemchild webintegernominal 0=not started (no data), 1=started but not finished (no data), 2=finished (data present), 3=abandoned or crashed or serial timeouts (data excluded), 4=random responses (data excluded)
pcpvtmel1/2PVT test time elapsed (child web at 16), seconds itemchild webintegerquantitativeapprox. 50-350 seconds
pcpvtot1/2PVT test total score (child web at 16), 0-48 itemchild webintegerscale value0 to 48
pcpvXXan1/2 (XX is the item number: 01-48)PVT test item XX answer (child web at 16), 1=right 2=wrong 3=unsure -1=timeout -4=crash itemchild webintegernominal1=right, 2=wrong, 3=unsure, -1=timeout, -4=item crashed
pcpvXXsc1/2 (XX is the item number: 01-48)PVT test item XX score (child web at 16), 1=correct 0=incorrectitemchild webintegerordinal0=incorrect, 1=correct
pcqachaos11/2EWQA Chaos item 1, regular routine (child web at 16), 0=not 1=quite 1=very trueitemchild web integerordinal0=not true, 1=quite true, 2=very true
pcqachaos1r1/2Reversed version of Chaos item 1 (child web at 16)itemchild webintegerordinal 0=very true, 1=quite true, 2=not true
pcqachaos21/2EWQA Chaos item 2, hear yourself think (child web at 16), 0=not 1=quite 1=very trueitemchild web integerordinal0=not true, 1=quite true, 2=very true
pcqachaos31/2EWQA Chaos item 3, a real zoo (child web at 16), 0=not 1=quite 1=very trueitemchild webinteger ordinal0=not true, 1=quite true, 2=very true
pcqachaos41/2EWQA Chaos item 4, stay on top (child web at 16), 0=not 1=quite 1=very trueitemchild webinteger ordinal0=not true, 1=quite true, 2=very true
pcqachaos4r1/2Reversed version of Chaos item 4 (child web at 16)itemchild webintegerordinal 0=very true, 1=quite true, 2=not true
pcqachaos51/2EWQA Chaos item 5, television turned on (child web at 16), 0=not 1=quite 1=very trueitemchild web integerordinal0=not true, 1=quite true, 2=very true
pcqachaos61/2EWQA Chaos item 6, calm atmosphere (child web at 16), 0=not 1=quite 1=very trueitemchild web integerordinal0=not true, 1=quite true, 2=very true
pcqachaos6r1/2Reversed version of Chaos item 6 (child web at 16)itemchild webintegerordinal 0=very true, 1=quite true, 2=not true
pcqacuri11/2EWQA Curiosity & Flow item 1, actively seeks information (child web at 16), 1=strongly disagree .. 7=strongly agree itemchild webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6, 7=strongly agree
pcqacuri21/2EWQA Curiosity & Flow item 2, lose track of time (child web at 16), 1=strongly disagree .. 7=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6, 7=strongly agree
pcqacuri31/2EWQA Curiosity & Flow item 3, new opportunities (child web at 16), 1=strongly disagree .. 7=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6, 7=strongly agree
pcqacuri41/2EWQA Curiosity & Flow item 4, do not probe deeply (child web at 16), 1=strongly disagree .. 7=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6, 7=strongly agree
pcqacuri4r1/2Reversed version of Curiosity item 4 (child web at 16)itemchild webintegerordinal 1=strongly agree, 2, 3, 4, 5, 6, 7=strongly disagree
pcqacuri51/2EWQA Curiosity & Flow item 5, great deal to interrupt (child web at 16), 1=strongly disagree .. 7=strongly agree itemchild webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6, 7=strongly agree
pcqacuri61/2EWQA Curiosity & Flow item 6, extremely intense (child web at 16), 1=strongly disagree .. 7=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6, 7=strongly agree
pcqacuri71/2EWQA Curiosity & Flow item 7, new experiences (child web at 16), 1=strongly disagree .. 7=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6, 7=strongly agree
pcqadata1/2EWQA data present (child web at 16), 1Y 0N itemchild webintegernominal0=no, 1=yes
pcqagrat11/2EWQA Gratitude item 1, so much in life (child web at 16), 1=strongly disagree .. 7=strongly agreeitemchild webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6, 7=strongly agree
pcqagrat21/2EWQA Gratitude item 2, very long list (child web at 16), 1=strongly disagree .. 7=strongly agreeitemchild web integerordinal1=strongly disagree, 2, 3, 4, 5, 6, 7=strongly agree
pcqagrat31/2EWQA Gratitude item 3, look at the world (child web at 16), 1=strongly disagree .. 7=strongly agreeitemchild webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6, 7=strongly agree
pcqagrat3r1/2Reversed version of Gratitude item 3 (child web at 16)itemchild webintegerordinal 1=strongly agree, 2, 3, 4, 5, 6, 7=strongly disagree
pcqagrat41/2EWQA Gratitude item 4, wide variety of people (child web at 16), 1=strongly disagree .. 7=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6, 7=strongly agree
pcqagrat51/2EWQA Gratitude item 5, as I get older (child web at 16), 1=strongly disagree .. 7=strongly agreeitemchild web integerordinal1=strongly disagree, 2, 3, 4, 5, 6, 7=strongly agree
pcqagrat61/2EWQA Gratitude item 6, long amounts of time (child web at 16), 1=strongly disagree .. 7=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6, 7=strongly agree
pcqagrat6r1/2Reversed version of Gratitude item 6 (child web at 16)itemchild webintegerordinal 1=strongly agree, 2, 3, 4, 5, 6, 7=strongly disagree
pcqaheye11/2EWQA Health & Eyesight item 1, general health (child web at 16), 1=excellent .. 5=pooritemchild web integerordinal1=excellent, 2=very good, 3=good, 4=fair, 5=poor
pcqaheye21/2EWQA Health & Eyesight item 2, glasses (child web at 16), 1=no 2=yesitemchild webinteger nominal1=no, 2=yes
pcqaheye31/2EWQA Health & Eyesight item 3, far vision without glasses (child web at 16), 1=not at all .. 5=extremely difficult itemchild webintegerordinal1=not difficult at all, 2, 3, 4, 5=extremely difficult
pcqaheye41/2EWQA Health & Eyesight item 4, near vision without glasses (child web at 16), 1=not at all .. 5=extremely difficult itemchild webintegerordinal1=not difficult at all, 2, 3, 4, 5=extremely difficult
pcqahopef11/2EWQA Hopefulness item 1, doing pretty well (child web at 16), 1=none .. 6=all of the timeitemchild web integerordinal1=none of the time, 2, 3, 4, 5, 6=all of the time
pcqahopef21/2EWQA Hopefulness item 2, get things in life (child web at 16), 1=none .. 6=all of the timeitemchild web integerordinal1=none of the time, 2, 3, 4, 5, 6=all of the time
pcqahopef31/2EWQA Hopefulness item 3, doing as well as others (child web at 16), 1=none .. 6=all of the timeitemchild webintegerordinal1=none of the time, 2, 3, 4, 5, 6=all of the time
pcqahopef41/2EWQA Hopefulness item 4, solve problem (child web at 16), 1=none .. 6=all of the timeitemchild web integerordinal1=none of the time, 2, 3, 4, 5, 6=all of the time
pcqahopef51/2EWQA Hopefulness item 5, help in future (child web at 16), 1=none .. 6=all of the timeitemchild web integerordinal1=none of the time, 2, 3, 4, 5, 6=all of the time
pcqahopef61/2EWQA Hopefulness item 6, when others quit (child web at 16), 1=none .. 6=all of the timeitemchild web integerordinal1=none of the time, 2, 3, 4, 5, 6=all of the time
pcqalifs011/2EWQA Life Satisfaction item 1, fun to be around (child web at 16), 1=strongly disagree .. 6=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6=strongly agree
pcqalifs021/2EWQA Life Satisfaction item 2, bad time with friends (child web at 16), 1=strongly disagree .. 6=strongly agree itemchild webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6=strongly agree
pcqalifs02r1/2Reversed version of Life Satisfaction item 2 (child web at 16)itemchild webinteger ordinal1=strongly agree, 2, 3, 4, 5, 6=strongly disagree
pcqalifs031/2EWQA Life Satisfaction item 3, lots I can do well (child web at 16), 1=strongly disagree .. 6=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6=strongly agree
pcqalifs041/2EWQA Life Satisfaction item 4, learn a lot at school (child web at 16), 1=strongly disagree .. 6=strongly agree itemchild webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6=strongly agree
pcqalifs051/2EWQA Life Satisfaction item 5, family is better (child web at 16), 1=strongly disagree .. 6=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6=strongly agree
pcqalifs061/2EWQA Life Satisfaction item 6, many things about school (child web at 16), 1=strongly disagree .. 6=strongly agree itemchild webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6=strongly agree
pcqalifs06r1/2Reversed version of Life Satisfaction item 6 (child web at 16)itemchild webinteger ordinal1=strongly agree, 2, 3, 4, 5, 6=strongly disagree
pcqalifs071/2EWQA Life Satisfaction item 7, friends help (child web at 16), 1=strongly disagree .. 6=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6=strongly agree
pcqalifs081/2EWQA Life Satisfaction item 8, like myself (child web at 16), 1=strongly disagree .. 6=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6=strongly agree
pcqalifs091/2EWQA Life Satisfaction item 9, fun things where I live (child web at 16), 1=strongly disagree .. 6=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6=strongly agree
pcqalifs101/2EWQA Life Satisfaction item 10, friends treat me well (child web at 16), 1=strongly disagree .. 6=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6=strongly agree
pcqalifs111/2EWQA Life Satisfaction item 11, people like me (child web at 16), 1=strongly disagree .. 6=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6=strongly agree
pcqalifs121/2EWQA Life Satisfaction item 12, enjoy being at home (child web at 16), 1=strongly disagree .. 6=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6=strongly agree
pcqalifs131/2EWQA Life Satisfaction item 13, family gets along (child web at 16), 1=strongly disagree .. 6=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6=strongly agree
pcqalifs141/2EWQA Life Satisfaction item 14, parents treat fairly (child web at 16), 1=strongly disagree .. 6=strongly agree itemchild webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6=strongly agree
pcqalifs151/2EWQA Life Satisfaction item 15, like being in school (child web at 16), 1=strongly disagree .. 6=strongly agree itemchild webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6=strongly agree
pcqalifs161/2EWQA Life Satisfaction item 16, wish different friends (child web at 16), 1=strongly disagree .. 6=strongly agree itemchild webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6=strongly agree
pcqalifs16r1/2Reversed version of Life Satisfaction item 16 (child web at 16)itemchild webinteger ordinal1=strongly agree, 2, 3, 4, 5, 6=strongly disagree
pcqalifs171/2EWQA Life Satisfaction item 17, enjoy school activities (child web at 16), 1=strongly disagree .. 6=strongly agree itemchild webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6=strongly agree
pcqalifs181/2EWQA Life Satisfaction item 18, wish different house (child web at 16), 1=strongly disagree .. 6=strongly agree itemchild webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6=strongly agree
pcqalifs18r1/2Reversed version of Life Satisfaction item 18 (child web at 16)itemchild webinteger ordinal1=strongly agree, 2, 3, 4, 5, 6=strongly disagree
pcqalifs191/2EWQA Life Satisfaction item 19, enough friends (child web at 16), 1=strongly disagree .. 6=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6=strongly agree
pcqalifs201/2EWQA Life Satisfaction item 20, wish different people (child web at 16), 1=strongly disagree .. 6=strongly agree itemchild webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6=strongly agree
pcqalifs20r1/2Reversed version of Life Satisfaction item 20 (child web at 16)itemchild webinteger ordinal1=strongly agree, 2, 3, 4, 5, 6=strongly disagree
pcqalifs211/2EWQA Life Satisfaction item 21, like where I live (child web at 16), 1=strongly disagree .. 6=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4, 5, 6=strongly agree
pcqaquan1/2EWQA number of questions answered (child web at 16) itemchild webintegerquantitativeup to 62
pcqascrtm11/2EWQA Screen Time item 1, entertainment games (child web at 16), 1=never 2=1/2 per week 3=3/4 per week 4=4+ times per week itemchild webintegerordinal1=never, 2=1-2 times a week, 3=3-4 times a week, 4=more than 4 times a week
pcqascrtm21/2EWQA Screen Time item 2, educational games (child web at 16), 1=never 2=1/2 per week 3=3/4 per week 4=4+ times per week itemchild webintegerordinal1=never, 2=1-2 times a week, 3=3-4 times a week, 4=more than 4 times a week
pcqascrtm31/2EWQA Screen Time item 3, word processing etc (child web at 16), 1=never 2=1/2 per week 3=3/4 per week 4=4+ times per week itemchild webintegerordinal1=never, 2=1-2 times a week, 3=3-4 times a week, 4=more than 4 times a week
pcqascrtm41/2EWQA Screen Time item 4, email (child web at 16), 1=never 2=1/2 per week 3=3/4 per week 4=4+ times per weekitem child webintegerordinal1=never, 2=1-2 times a week, 3=3-4 times a week, 4=more than 4 times a week
pcqascrtm51/2EWQA Screen Time item 5, chat rooms (child web at 16), 1=never 2=1/2 per week 3=3/4 per week 4=4+ times per weekitem child webintegerordinal1=never, 2=1-2 times a week, 3=3-4 times a week, 4=more than 4 times a week
pcqascrtm61/2EWQA Screen Time item 6, web sites for fun (child web at 16), 1=never 2=1/2 per week 3=3/4 per week 4=4+ times per week itemchild webintegerordinal1=never, 2=1-2 times a week, 3=3-4 times a week, 4=more than 4 times a week
pcqascrtm71/2EWQA Screen Time item 7, web sites for school work (child web at 16), 1=never 2=1/2 per week 3=3/4 per week 4=4+ times per week itemchild webintegerordinal1=never, 2=1-2 times a week, 3=3-4 times a week, 4=more than 4 times a week
pcqascrtm81/2EWQA Screen Time item 8, reading on line (child web at 16), 1=never 2=1/2 per week 3=3/4 per week 4=4+ times per week itemchild webintegerordinal1=never, 2=1-2 times a week, 3=3-4 times a week, 4=more than 4 times a week
pcqasess1/2EWQA number of sessions used (child web at 16) itemchild webintegerquantitativeapprox. 1-3
pcqashs11/2EWQA Subjective Happiness Scale item 1, happy person (child web at 16), 1=not very .. 7=veryitemchild web integerordinal1=not a very happy person, 2, 3, 4, 5, 6, 7=a very happy person
pcqashs21/2EWQA Subjective Happiness Scale item 2, compared to peers (child web at 16), 1=less .. 7=more happyitemchild webintegerordinal1=less happy, 2, 3, 4, 5, 6, 7=more happy
pcqashs31/2EWQA Subjective Happiness Scale item 3, generally very happy (child web at 16), 1=not at all .. 7=great dealitem child webintegerordinal1=not at all, 2, 3, 4, 5, 6, 7=a great deal
pcqashs41/2EWQA Subjective Happiness Scale item 4, generally not happy (child web at 16), 1=not at all .. 7=great dealitem child webintegerordinal1=not at all, 2, 3, 4, 5, 6, 7=a great deal
pcqashs4r1/2Reversed version of SHS item 4 (child web at 16) itemchild webintegerordinal1=a great deal, 2, 3, 4, 5, 6, 7=not at all
pcqastat1/2EWQA web test status (twin web at 16), see value labelsitemchild webintegernominal 0=not started (no data), 1=started but not finished (no data), 2=finished (data present), 3=abandoned or crashed or serial timeouts (data excluded), 4=random responses (data excluded)
pcqattt1/2EWQA total time taken if completed in one session (child web at 16), minutesderivedchild webdecimal quantitativeapprox. 3-20 minutes
pcqbatsu11/2EWQB PISA Attitudes to Subjects item 1, science (child web at 16), 0=not at all .. 3=very importantitem child webintegerordinal0=not important at all, 1, 2, 3=very important
pcqbatsu21/2EWQB PISA Attitudes to Subjects item 2, mathematics (child web at 16), 0=not at all .. 3=very importantitem child webintegerordinal0=not important at all, 1, 2, 3=very important
pcqbatsu31/2EWQB PISA Attitudes to Subjects item 3, english (child web at 16), 0=not at all .. 3=very importantitem child webintegerordinal0=not important at all, 1, 2, 3=very important
pcqbclen011/2EWQB Classroom Environment item 1, work in small groups (child web at 16), 0=never 1=some 2=most 3=every lessonitem child webintegerordinal0=never, 1=some lessons, 2=most lessons, 3=every lesson
pcqbclen021/2EWQB Classroom Environment item 2, help each other (child web at 16), 0=never 1=some 2=most 3=every lessonitem child webintegerordinal0=never, 1=some lessons, 2=most lessons, 3=every lesson
pcqbclen031/2EWQB Classroom Environment item 3, first to answer (child web at 16), 0=never 1=some 2=most 3=every lessonitem child webintegerordinal0=never, 1=some lessons, 2=most lessons, 3=every lesson
pcqbclen041/2EWQB Classroom Environment item 4, first to finish (child web at 16), 0=never 1=some 2=most 3=every lessonitem child webintegerordinal0=never, 1=some lessons, 2=most lessons, 3=every lesson
pcqbclen051/2EWQB Classroom Environment item 5, show each other work (child web at 16), 0=never 1=some 2=most 3=every lessonitem child webintegerordinal0=never, 1=some lessons, 2=most lessons, 3=every lesson
pcqbclen061/2EWQB Classroom Environment item 6, tell each other reports (child web at 16), 0=never 1=some 2=most 3=every lessonitem child webintegerordinal0=never, 1=some lessons, 2=most lessons, 3=every lesson
pcqbclen071/2EWQB Classroom Environment item 7, makes work interesting (child web at 16), 0=never 1=some 2=most 3=every lesson itemchild webintegerordinal0=never, 1=some lessons, 2=most lessons, 3=every lesson
pcqbclen081/2EWQB Classroom Environment item 8, teacher likes work (child web at 16), 0=never 1=some 2=most 3=every lessonitem child webintegerordinal0=never, 1=some lessons, 2=most lessons, 3=every lesson
pcqbclen091/2EWQB Classroom Environment item 9, teacher explains why (child web at 16), 0=never 1=some 2=most 3=every lesson itemchild webintegerordinal0=never, 1=some lessons, 2=most lessons, 3=every lesson
pcqbclen101/2EWQB Classroom Environment item 10, wait a long time (child web at 16), 0=never 1=some 2=most 3=every lessonitem child webintegerordinal0=never, 1=some lessons, 2=most lessons, 3=every lesson
pcqbclen111/2EWQB Classroom Environment item 11, shows an interest (child web at 16), 0=never 1=some 2=most 3=every lesson itemchild webintegerordinal0=never, 1=some lessons, 2=most lessons, 3=every lesson
pcqbclen121/2EWQB Classroom Environment item 12, express opinions (child web at 16), 0=never 1=some 2=most 3=every lesson itemchild webintegerordinal0=never, 1=some lessons, 2=most lessons, 3=every lesson
pcqbclen131/2EWQB Classroom Environment item 13, continues teaching (child web at 16), 0=never 1=some 2=most 3=every lesson itemchild webintegerordinal0=never, 1=some lessons, 2=most lessons, 3=every lesson
pcqbclen141/2EWQB Classroom Environment item 14, does a lot to help (child web at 16), 0=never 1=some 2=most 3=every lessonitem child webintegerordinal0=never, 1=some lessons, 2=most lessons, 3=every lesson
pcqbclen151/2EWQB Classroom Environment item 15, checks homework (child web at 16), 0=never 1=some 2=most 3=every lesson itemchild webintegerordinal0=never, 1=some lessons, 2=most lessons, 3=every lesson
pcqbclen161/2EWQB Classroom Environment item 16, cannot work well (child web at 16), 0=never 1=some 2=most 3=every lessonitem child webintegerordinal0=never, 1=some lessons, 2=most lessons, 3=every lesson
pcqbclen171/2EWQB Classroom Environment item 17, do not listen (child web at 16), 0=never 1=some 2=most 3=every lessonitem child webintegerordinal0=never, 1=some lessons, 2=most lessons, 3=every lesson
pcqbclen181/2EWQB Classroom Environment item 18, noise and disorder (child web at 16), 0=never 1=some 2=most 3=every lesson itemchild webintegerordinal0=never, 1=some lessons, 2=most lessons, 3=every lesson
pcqbclen191/2EWQB Classroom Environment item 19, doing nothing (child web at 16), 0=never 1=some 2=most 3=every lessonitem child webintegerordinal0=never, 1=some lessons, 2=most lessons, 3=every lesson
pcqbdata1/2EWQB data present (child web at 16), 1Y 0N itemchild webintegernominal0=no, 1=yes
pcqbhmwk11/2EWQB PISA Homework item 1, do homework on time (child web at 16), 0=never 1=sometimes 2=most of time 3=alwaysitem child webintegerordinal0=never, 1=sometimes, 2=most of the time, 3=always
pcqbhmwk21/2EWQB PISA Homework item 2, homework watching tv (child web at 16), 0=never 1=sometimes 2=most of time 3=alwaysitem child webintegerordinal0=never, 1=sometimes, 2=most of the time, 3=always
pcqbhmwk2r1/2Reversed version of PISA Homework item 2 (child web at 16)itemchild webintegerordinal 0=always, 1=most of the time, 2=sometimes, 3=never
pcqbhmwk31/2EWQB PISA Homework item 3, teachers grade homework (child web at 16), 0=never 1=sometimes 2=most of time 3=alwaysitem child webintegerordinal0=never, 1=sometimes, 2=most of the time, 3=always
pcqbhmwk41/2EWQB PISA Homework item 4, teachers make comments (child web at 16), 0=never 1=sometimes 2=most of time 3=alwaysitem child webintegerordinal0=never, 1=sometimes, 2=most of the time, 3=always
pcqbhmwk51/2EWQB PISA Homework item 5, interesting homework (child web at 16), 0=never 1=sometimes 2=most of time 3=alwaysitem child webintegerordinal0=never, 1=sometimes, 2=most of the time, 3=always
pcqbmain11/2EWQB PISA Maths Interest item 1, look forward (child web at 16), 1=strongly disagree .. 4=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4=strongly agree
pcqbmain21/2EWQB PISA Maths Interest item 2, enjoy it (child web at 16), 1=strongly disagree .. 4=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4=strongly agree
pcqbmain31/2EWQB PISA Maths Interest item 3, interested (child web at 16), 1=strongly disagree .. 4=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4=strongly agree
pcqbmase11/2EWQB PISA Maths Self-Efficacy item 1, using train timetable (child web at 16), 0=not at all .. 3=very confidentitem child webintegerordinal0=not at all confident, 1, 2, 3=very confident
pcqbmase21/2EWQB PISA Maths Self-Efficacy item 2, calculating discount (child web at 16), 0=not at all .. 3=very confidentitem child webintegerordinal0=not at all confident, 1, 2, 3=very confident
pcqbmase31/2EWQB PISA Maths Self-Efficacy item 3, calculating square metres (child web at 16), 0=not at all .. 3=very confident itemchild webintegerordinal0=not at all confident, 1, 2, 3=very confident
pcqbmase41/2EWQB PISA Maths Self-Efficacy item 4, understanding graphs (child web at 16), 0=not at all .. 3=very confidentitem child webintegerordinal0=not at all confident, 1, 2, 3=very confident
pcqbmase51/2EWQB PISA Maths Self-Efficacy item 5, solving linear equation (child web at 16), 0=not at all .. 3=very confident itemchild webintegerordinal0=not at all confident, 1, 2, 3=very confident
pcqbmase61/2EWQB PISA Maths Self-Efficacy item 6, finding distance (child web at 16), 0=not at all .. 3=very confidentitem child webintegerordinal0=not at all confident, 1, 2, 3=very confident
pcqbmase71/2EWQB PISA Maths Self-Efficacy item 7, solving quadratic equation (child web at 16), 0=not at all .. 3=very confident itemchild webintegerordinal0=not at all confident, 1, 2, 3=very confident
pcqbmase81/2EWQB PISA Maths Self-Efficacy item 8, calcultating petrol consumption (child web at 16), 0=not at all .. 3=very confident itemchild webintegerordinal0=not at all confident, 1, 2, 3=very confident
pcqbmatm11/2EWQB PISA Time Spent on Maths item 1, regular lessons at school (child web at 16), 0=no time .. 4=six or more hours itemchild webintegerordinal0=no time, 1=less than 2 hours, 2=2-4 hours, 3=4-6 hours, 4=6 or more hours
pcqbmatm21/2EWQB PISA Time Spent on Maths item 2, out of school lessons (child web at 16), 0=no time .. 4=six or more hoursitem child webintegerordinal0=no time, 1=less than 2 hours, 2=2-4 hours, 3=4-6 hours, 4=6 or more hours
pcqbmatm31/2EWQB PISA Time Spent on Maths item 3, study by myself (child web at 16), 0=no time .. 4=six or more hoursitem child webintegerordinal0=no time, 1=less than 2 hours, 2=2-4 hours, 3=4-6 hours, 4=6 or more hours
pcqbpevi11/2EWQB Peer Victimisation item 1, get me in trouble (child web at 16), 0=not at all 1=once 2=more than onceitem child webintegerordinal0=not at all, 1=once, 2=more than once
pcqbpevi21/2EWQB Peer Victimisation item 2, took something (child web at 16), 0=not at all 1=once 2=more than onceitem child webintegerordinal0=not at all, 1=once, 2=more than once
pcqbpevi31/2EWQB Peer Victimisation item 3, hurt me physically (child web at 16), 0=not at all 1=once 2=more than onceitem child webintegerordinal0=not at all, 1=once, 2=more than once
pcqbpevi41/2EWQB Peer Victimisation item 4, refused to talk (child web at 16), 0=not at all 1=once 2=more than onceitem child webintegerordinal0=not at all, 1=once, 2=more than once
pcqbpevi51/2EWQB Peer Victimisation item 5, made fun (child web at 16), 0=not at all 1=once 2=more than onceitemchild web integerordinal0=not at all, 1=once, 2=more than once
pcqbpevi61/2EWQB Peer Victimisation item 6, swore (child web at 16), 0=not at all 1=once 2=more than onceitemchild web integerordinal0=not at all, 1=once, 2=more than once
pcqbquan1/2EWQB number of questions answered (child web at 16) itemchild webintegerquantitativeup to 80
pcqbscen011/2EWQB School Engagement item 1, adults treat fairly (child web at 16), 1=strongly disagree .. 4=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4=strongly agree
pcqbscen021/2EWQB School Engagement item 2, listen to students (child web at 16), 1=strongly disagree .. 4=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4=strongly agree
pcqbscen031/2EWQB School Engagement item 3, teachers are there (child web at 16), 1=strongly disagree .. 4=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4=strongly agree
pcqbscen041/2EWQB School Engagement item 4, teachers are open (child web at 16), 1=strongly disagree .. 4=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4=strongly agree
pcqbscen051/2EWQB School Engagement item 5, enjoy talking to teachers (child web at 16), 1=strongly disagree .. 4=strongly agree itemchild webintegerordinal1=strongly disagree, 2, 3, 4=strongly agree
pcqbscen061/2EWQB School Engagement item 6, interested as a person (child web at 16), 1=strongly disagree .. 4=strongly agree itemchild webintegerordinal1=strongly disagree, 2, 3, 4=strongly agree
pcqbscen071/2EWQB School Engagement item 7, check homework (child web at 16), 1=strongly disagree .. 4=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4=strongly agree
pcqbscen081/2EWQB School Engagement item 8, learning is fun (child web at 16), 1=strongly disagree .. 4=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4=strongly agree
pcqbscen091/2EWQB School Engagement item 9, work hard (child web at 16), 1=strongly disagree .. 4=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4=strongly agree
pcqbscen101/2EWQB School Engagement item 10, have a say (child web at 16), 1=strongly disagree .. 4=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4=strongly agree
pcqbscen111/2EWQB School Engagement item 11, students are there (child web at 16), 1=strongly disagree .. 4=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4=strongly agree
pcqbscen121/2EWQB School Engagement item 12, the way I am (child web at 16), 1=strongly disagree .. 4=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4=strongly agree
pcqbscen131/2EWQB School Engagement item 13, students respect (child web at 16), 1=strongly disagree .. 4=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4=strongly agree
pcqbscen141/2EWQB School Engagement item 14, continue my education (child web at 16), 1=strongly disagree .. 4=strongly agree itemchild webintegerordinal1=strongly disagree, 2, 3, 4=strongly agree
pcqbscen151/2EWQB School Engagement item 15, achieving future goals (child web at 16), 1=strongly disagree .. 4=strongly agree itemchild webintegerordinal1=strongly disagree, 2, 3, 4=strongly agree
pcqbscen161/2EWQB School Engagement item 16, hopeful about future (child web at 16), 1=strongly disagree .. 4=strongly agree itemchild webintegerordinal1=strongly disagree, 2, 3, 4=strongly agree
pcqbscen171/2EWQB School Engagement item 17, family willing to help (child web at 16), 1=strongly disagree .. 4=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4=strongly agree
pcqbscen181/2EWQB School Engagement item 18, family wants to know (child web at 16), 1=strongly disagree .. 4=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4=strongly agree
pcqbscen191/2EWQB School Engagement item 19, keep trying (child web at 16), 1=strongly disagree .. 4=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4=strongly agree
pcqbscrs11/2EWQB PISA School Resources item 1, school library (child web at 16), 0=never/hardly ever .. 4=several times a week itemchild webintegerordinal0=never or hardly ever, 1=a few times a year, 2=about once a month, 3=several times a month, 4=several times a week
pcqbscrs21/2EWQB PISA School Resources item 2, computers (child web at 16), 0=never/hardly ever .. 4=several times a weekitem child webintegerordinal0=never or hardly ever, 1=a few times a year, 2=about once a month, 3=several times a month, 4=several times a week
pcqbscrs31/2EWQB PISA School Resources item 3, internet (child web at 16), 0=never/hardly ever .. 4=several times a weekitem child webintegerordinal0=never or hardly ever, 1=a few times a year, 2=about once a month, 3=several times a month, 4=several times a week
pcqbscrs41/2EWQB PISA School Resources item 4, science labs (child web at 16), 0=never/hardly ever .. 4=several times a week itemchild webintegerordinal0=never or hardly ever, 1=a few times a year, 2=about once a month, 3=several times a month, 4=several times a week
pcqbsess1/2EWQB number of sessions used (child web at 16) itemchild webintegerquantitativeapprox. 1-3
pcqbstat1/2EWQB web test status (twin web at 16), see value labelsitemchild webintegernominal 0=not started (no data), 1=started but not finished (no data), 2=finished (data present), 3=abandoned or crashed or serial timeouts (data excluded), 4=random responses (data excluded)
pcqbstsc11/2EWQB PISA Attitudes to School item 1, little to prepare me (child web at 16), 1=strongly disagree .. 4=strongly agree itemchild webintegerordinal1=strongly disagree, 2, 3, 4=strongly agree
pcqbstsc1r1/2Reversed version of PISA Attitudes to School item 1 (child web at 16)itemchild webinteger ordinal1=strongly agree, 2, 3, 4=strongly disagree
pcqbstsc21/2EWQB PISA Attitudes to School item 2, waste of time (child web at 16), 1=strongly disagree .. 4=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4=strongly agree
pcqbstsc2r1/2Reversed version of PISA Attitudes to School item 2 (child web at 16)itemchild webinteger ordinal1=strongly agree, 2, 3, 4=strongly disagree
pcqbstsc31/2EWQB PISA Attitudes to School item 3, give me confidence (child web at 16), 1=strongly disagree .. 4=strongly agree itemchild webintegerordinal1=strongly disagree, 2, 3, 4=strongly agree
pcqbstsc41/2EWQB PISA Attitudes to School item 4, useful in a job (child web at 16), 1=strongly disagree .. 4=strongly agreeitem child webintegerordinal1=strongly disagree, 2, 3, 4=strongly agree
pcqbttt1/2EWQB total time taken if completed in one session (child web at 16), minutesderivedchild webdecimal quantitativeapprox. 3-20 minutes
pcqcatta011/2EWQC Peer Attachment item 1, friends point of view (child web at 16), 0=almost never .. 4=almost alwaysitem child webintegerordinal0=almost never or never true, 1, 2, 3, 4=almost always or always true
pcqcatta021/2EWQC Peer Attachment item 2, friends can tell (child web at 16), 0=almost never .. 4=almost alwaysitem child webintegerordinal0=almost never or never true, 1, 2, 3, 4=almost always or always true
pcqcatta031/2EWQC Peer Attachment item 3, point of view (child web at 16), 0=almost never .. 4=almost alwaysitemchild web integerordinal0=almost never or never true, 1, 2, 3, 4=almost always or always true
pcqcatta041/2EWQC Peer Attachment item 4, feel ashamed (child web at 16), 0=almost never .. 4=almost alwaysitemchild web integerordinal0=almost never or never true, 1, 2, 3, 4=almost always or always true
pcqcatta04r1/2Reversed version of Attachment item 4 (child web at 16)itemchild webintegerordinal 0=almost always or always true, 1, 2, 3, 4=almost never or never true
pcqcatta051/2EWQC Peer Attachment item 5, wish different friends (child web at 16), 0=almost never .. 4=almost alwaysitem child webintegerordinal0=almost never or never true, 1, 2, 3, 4=almost always or always true
pcqcatta05r1/2Reversed version of Attachment item 5 (child web at 16)itemchild webintegerordinal 0=almost always or always true, 1, 2, 3, 4=almost never or never true
pcqcatta061/2EWQC Peer Attachment item 6, friends understand me (child web at 16), 0=almost never .. 4=almost alwaysitem child webintegerordinal0=almost never or never true, 1, 2, 3, 4=almost always or always true
pcqcatta071/2EWQC Peer Attachment item 7, friends encourage me (child web at 16), 0=almost never .. 4=almost alwaysitem child webintegerordinal0=almost never or never true, 1, 2, 3, 4=almost always or always true
pcqcatta081/2EWQC Peer Attachment item 8, friends accept me (child web at 16), 0=almost never .. 4=almost alwaysitem child webintegerordinal0=almost never or never true, 1, 2, 3, 4=almost always or always true
pcqcatta091/2EWQC Peer Attachment item 9, in touch with friends (child web at 16), 0=almost never .. 4=almost alwaysitem child webintegerordinal0=almost never or never true, 1, 2, 3, 4=almost always or always true
pcqcatta09r1/2Reversed version of Attachment item 9 (child web at 16)itemchild webintegerordinal 0=almost always or always true, 1, 2, 3, 4=almost never or never true
pcqcatta101/2EWQC Peer Attachment item 10, friends do not understand (child web at 16), 0=almost never .. 4=almost alwaysitem child webintegerordinal0=almost never or never true, 1, 2, 3, 4=almost always or always true
pcqcatta10r1/2Reversed version of Attachment item 10 (child web at 16)itemchild webintegerordinal 0=almost always or always true, 1, 2, 3, 4=almost never or never true
pcqcatta111/2EWQC Peer Attachment item 11, feel alone or apart (child web at 16), 0=almost never .. 4=almost alwaysitem child webintegerordinal0=almost never or never true, 1, 2, 3, 4=almost always or always true
pcqcatta11r1/2Reversed version of Attachment item 11 (child web at 16)itemchild webintegerordinal 0=almost always or always true, 1, 2, 3, 4=almost never or never true
pcqcatta121/2EWQC Peer Attachment item 12, friends listen (child web at 16), 0=almost never .. 4=almost alwaysitem child webintegerordinal0=almost never or never true, 1, 2, 3, 4=almost always or always true
pcqcatta131/2EWQC Peer Attachment item 13, good friends (child web at 16), 0=almost never .. 4=almost alwaysitemchild web integerordinal0=almost never or never true, 1, 2, 3, 4=almost always or always true
pcqcatta141/2EWQC Peer Attachment item 14, easy to talk to (child web at 16), 0=almost never .. 4=almost alwaysitem child webintegerordinal0=almost never or never true, 1, 2, 3, 4=almost always or always true
pcqcatta151/2EWQC Peer Attachment item 15, angry about something (child web at 16), 0=almost never .. 4=almost alwaysitem child webintegerordinal0=almost never or never true, 1, 2, 3, 4=almost always or always true
pcqcatta161/2EWQC Peer Attachment item 16, understand myself better (child web at 16), 0=almost never .. 4=almost alwaysitem child webintegerordinal0=almost never or never true, 1, 2, 3, 4=almost always or always true
pcqcatta171/2EWQC Peer Attachment item 17, how I am feeling (child web at 16), 0=almost never .. 4=almost alwaysitem child webintegerordinal0=almost never or never true, 1, 2, 3, 4=almost always or always true
pcqcatta181/2EWQC Peer Attachment item 18, angry with my friends (child web at 16), 0=almost never .. 4=almost alwaysitem child webintegerordinal0=almost never or never true, 1, 2, 3, 4=almost always or always true
pcqcatta18r1/2Reversed version of Attachment item 18 (child web at 16)itemchild webintegerordinal 0=almost always or always true, 1, 2, 3, 4=almost never or never true
pcqcatta191/2EWQC Peer Attachment item 19, count on my friends (child web at 16), 0=almost never .. 4=almost alwaysitem child webintegerordinal0=almost never or never true, 1, 2, 3, 4=almost always or always true
pcqcatta201/2EWQC Peer Attachment item 20, trust my friends (child web at 16), 0=almost never .. 4=almost alwaysitem child webintegerordinal0=almost never or never true, 1, 2, 3, 4=almost always or always true
pcqcatta211/2EWQC Peer Attachment item 21, respect my feelings (child web at 16), 0=almost never .. 4=almost alwaysitem child webintegerordinal0=almost never or never true, 1, 2, 3, 4=almost always or always true
pcqcatta221/2EWQC Peer Attachment item 22, get upset more (child web at 16), 0=almost never .. 4=almost alwaysitem child webintegerordinal0=almost never or never true, 1, 2, 3, 4=almost always or always true
pcqcatta22r1/2Reversed version of Attachment item 22 (child web at 16)itemchild webintegerordinal 0=almost always or always true, 1, 2, 3, 4=almost never or never true
pcqcatta231/2EWQC Peer Attachment item 23, friends are irritated (child web at 16), 0=almost never .. 4=almost alwaysitem child webintegerordinal0=almost never or never true, 1, 2, 3, 4=almost always or always true
pcqcatta23r1/2Reversed version of Attachment item 23 (child web at 16)itemchild webintegerordinal 0=almost always or always true, 1, 2, 3, 4=almost never or never true
pcqcatta241/2EWQC Peer Attachment item 24, problems and troubles (child web at 16), 0=almost never .. 4=almost alwaysitem child webintegerordinal0=almost never or never true, 1, 2, 3, 4=almost always or always true
pcqcatta251/2EWQC Peer Attachment item 25, friends ask me about it (child web at 16), 0=almost never .. 4=almost alwaysitem child webintegerordinal0=almost never or never true, 1, 2, 3, 4=almost always or always true
pcqcdata1/2EWQC data present (child web at 16), 1Y 0N itemchild webintegernominal0=no, 1=yes
pcqcpaco11/2EWQC Parental Control item 1, how late to stay up (child web at 16), 1=parents decide .. 5=I decideitemchild webintegerordinal1=my parents decide, 2=my parents decide after discussing it with me, 3=we decide together, 4=I decide after discussing it with my parents, 5=I decide all by myself
pcqcpaco21/2EWQC Parental Control item 2, which friends (child web at 16), 1=parents decide .. 5=I decideitemchild web integerordinal1=my parents decide, 2=my parents decide after discussing it with me, 3=we decide together, 4=I decide after discussing it with my parents, 5=I decide all by myself
pcqcpaco31/2EWQC Parental Control item 3, which activities (child web at 16), 1=parents decide .. 5=I decideitemchild webintegerordinal1=my parents decide, 2=my parents decide after discussing it with me, 3=we decide together, 4=I decide after discussing it with my parents, 5=I decide all by myself
pcqcpaco41/2EWQC Parental Control item 4, meet friends (child web at 16), 1=parents decide .. 5=I decideitemchild web integerordinal1=my parents decide, 2=my parents decide after discussing it with me, 3=we decide together, 4=I decide after discussing it with my parents, 5=I decide all by myself
pcqcpaco51/2EWQC Parental Control item 5, how you dress (child web at 16), 1=parents decide .. 5=I decideitemchild web integerordinal1=my parents decide, 2=my parents decide after discussing it with me, 3=we decide together, 4=I decide after discussing it with my parents, 5=I decide all by myself
pcqcpaco61/2EWQC Parental Control item 6, do with your money (child web at 16), 1=parents decide .. 5=I decideitemchild webintegerordinal1=my parents decide, 2=my parents decide after discussing it with me, 3=we decide together, 4=I decide after discussing it with my parents, 5=I decide all by myself
pcqcpaco71/2EWQC Parental Control item 7, watch on tv (child web at 16), 1=parents decide .. 5=I decideitemchild web integerordinal1=my parents decide, 2=my parents decide after discussing it with me, 3=we decide together, 4=I decide after discussing it with my parents, 5=I decide all by myself
pcqcpaco81/2EWQC Parental Control item 8, religious training (child web at 16), 1=parents decide .. 5=I decideitemchild webintegerordinal1=my parents decide, 2=my parents decide after discussing it with me, 3=we decide together, 4=I decide after discussing it with my parents, 5=I decide all by myself
pcqcpadi11/2EWQC Parental Discipline item 1, shouted at (child web at 16), 0=not 1=quite 2=very trueitemchild web integerordinal0=not true, 1=quite true, 2=very true
pcqcpadi21/2EWQC Parental Discipline item 2, explain (child web at 16), 0=not 1=quite 2=very trueitemchild web integerordinal0=not true, 1=quite true, 2=very true
pcqcpadi31/2EWQC Parental Discipline item 3, smacked (child web at 16), 0=not 1=quite 2=very trueitemchild web integerordinal0=not true, 1=quite true, 2=very true
pcqcpadi41/2EWQC Parental Discipline item 4, firm (child web at 16), 0=not 1=quite 2=very trueitemchild web integerordinal0=not true, 1=quite true, 2=very true
pcqcpamo11/2EWQC Parental Monitoring item 1, who spend time with (child web at 16), 1=does not know .. 4=knows everythingitem child webintegerordinal1=doesn't know, 2=knows a little bit, 3=knows a lot, 4=knows everything
pcqcpamo21/2EWQC Parental Monitoring item 2, how spend free time (child web at 16), 1=does not know .. 4=knows everythingitem child webintegerordinal1=doesn't know, 2=knows a little bit, 3=knows a lot, 4=knows everything
pcqcpamo31/2EWQC Parental Monitoring item 3, how spend money (child web at 16), 1=does not know .. 4=knows everythingitem child webintegerordinal1=doesn't know, 2=knows a little bit, 3=knows a lot, 4=knows everything
pcqcpamo41/2EWQC Parental Monitoring item 4, where after school (child web at 16), 1=does not know .. 4=knows everythingitem child webintegerordinal1=doesn't know, 2=knows a little bit, 3=knows a lot, 4=knows everything
pcqcpamo51/2EWQC Parental Monitoring item 5, where on weekend (child web at 16), 1=does not know .. 4=knows everythingitem child webintegerordinal1=doesn't know, 2=knows a little bit, 3=knows a lot, 4=knows everything
pcqcpamo61/2EWQC Parental Monitoring item 6, problems at school (child web at 16), 1=does not know .. 4=knows everythingitem child webintegerordinal1=doesn't know, 2=knows a little bit, 3=knows a lot, 4=knows everything
pcqcquan1/2EWQC number of questions answered (child web at 16) itemchild webintegerquantitativeup to 47
pcqcsess1/2EWQC number of sessions used (child web at 16) itemchild webintegerquantitativeapprox. 1-3
pcqcstat1/2EWQC web test status (twin web at 16), see value labelsitemchild webintegernominal 0=not started (no data), 1=started but not finished (no data), 2=finished (data present), 3=abandoned or crashed or serial timeouts (data excluded), 4=random responses (data excluded)
pcqcttt1/2EWQC total time taken if completed in one session (child web at 16), minutesderivedchild webdecimal quantitativeapprox. 1-10 minutes
pcqddata1/2EWQD data present (child web at 16), 1Y 0N itemchild webintegernominal0=no, 1=yes
pcqdgrit011/2EWQD GRIT Perseverance & Ambition item 1, aim to be the best (child web at 16), 1=not like me at all .. 5=very much like me itemchild webintegerordinal1=not like me at all, 2, 3, 4, 5=very much like me
pcqdgrit021/2EWQD GRIT Perseverance & Ambition item 2, new ideas distract me (child web at 16), 1=not like me at all .. 5=very much like meitemchild webintegerordinal 1=not like me at all, 2, 3, 4, 5=very much like me
pcqdgrit02r1/2Reversed version of GRIT item 2 (child web at 16) itemchild webintegerordinal1=very much like me, 2, 3, 4, 5=not like me at all
pcqdgrit031/2EWQD GRIT Perseverance & Ambition item 3, ambitious (child web at 16), 1=not like me at all .. 5=very much like me itemchild webintegerordinal1=not like me at all, 2, 3, 4, 5=very much like me
pcqdgrit041/2EWQD GRIT Perseverance & Ambition item 4, setbacks (child web at 16), 1=not like me at all .. 5=very much like meitem child webintegerordinal1=not like me at all, 2, 3, 4, 5=very much like me
pcqdgrit051/2EWQD GRIT Perseverance & Ambition item 5, lost interest (child web at 16), 1=not like me at all .. 5=very much like me itemchild webintegerordinal1=not like me at all, 2, 3, 4, 5=very much like me
pcqdgrit05r1/2Reversed version of GRIT item 5 (child web at 16) itemchild webintegerordinal1=very much like me, 2, 3, 4, 5=not like me at all
pcqdgrit061/2EWQD GRIT Perseverance & Ambition item 6, hard worker (child web at 16), 1=not like me at all .. 5=very much like me itemchild webintegerordinal1=not like me at all, 2, 3, 4, 5=very much like me
pcqdgrit071/2EWQD GRIT Perseverance & Ambition item 7, set a goal (child web at 16), 1=not like me at all .. 5=very much like me itemchild webintegerordinal1=not like me at all, 2, 3, 4, 5=very much like me
pcqdgrit07r1/2Reversed version of GRIT item 7 (child web at 16) itemchild webintegerordinal1=very much like me, 2, 3, 4, 5=not like me at all
pcqdgrit081/2EWQD GRIT Perseverance & Ambition item 8, maintaining focus (child web at 16), 1=not like me at all .. 5=very much like meitemchild webintegerordinal 1=not like me at all, 2, 3, 4, 5=very much like me
pcqdgrit08r1/2Reversed version of GRIT item 8 (child web at 16) itemchild webintegerordinal1=very much like me, 2, 3, 4, 5=not like me at all
pcqdgrit091/2EWQD GRIT Perseverance & Ambition item 9, finish what I begin (child web at 16), 1=not like me at all .. 5=very much like me itemchild webintegerordinal1=not like me at all, 2, 3, 4, 5=very much like me
pcqdgrit101/2EWQD GRIT Perseverance & Ambition item 10, achieving something (child web at 16), 1=not like me at all .. 5=very much like meitemchild webintegerordinal 1=not like me at all, 2, 3, 4, 5=very much like me
pcqdgrit111/2EWQD GRIT Perseverance & Ambition item 11, achievment overrated (child web at 16), 1=not like me at all .. 5=very much like meitemchild webintegerordinal 1=not like me at all, 2, 3, 4, 5=very much like me
pcqdgrit11r1/2Reversed version of GRIT item 11 (child web at 16)itemchild webintegerordinal 1=very much like me, 2, 3, 4, 5=not like me at all
pcqdgrit121/2EWQD GRIT Perseverance & Ambition item 12, driven to succeed (child web at 16), 1=not like me at all .. 5=very much like me itemchild webintegerordinal1=not like me at all, 2, 3, 4, 5=very much like me
pcqdgrit131/2EWQD GRIT Perseverance & Ambition item 13, diligent (child web at 16), 1=not like me at all .. 5=very much like me itemchild webintegerordinal1=not like me at all, 2, 3, 4, 5=very much like me
pcqdhtcm1/2EWQD Height (child web at 16), centimetres itemchild webintegerquantitativeapprox. 140-200 centimetres
pcqdlotr11/2EWQD LOT-R Optimism item 1, expect the best (child web at 16), 1=not like me at all .. 5=very much like meitem child webintegerordinal1=not like me at all, 2, 3, 4, 5=very much like me
pcqdlotr21/2EWQD LOT-R Optimism item 2, go wrong (child web at 16), 1=not like me at all .. 5=very much like meitemchild webintegerordinal1=not like me at all, 2, 3, 4, 5=very much like me
pcqdlotr2r1/2Reversed version of LOT-R item 2 (child web at 16) itemchild webintegerordinal1=very much like me, 2, 3, 4, 5=not like me at all
pcqdlotr31/2EWQD LOT-R Optimism item 3, optimistic (child web at 16), 1=not like me at all .. 5=very much like meitem child webintegerordinal1=not like me at all, 2, 3, 4, 5=very much like me
pcqdlotr41/2EWQD LOT-R Optimism item 4, hardly ever expect (child web at 16), 1=not like me at all .. 5=very much like meitem child webintegerordinal1=not like me at all, 2, 3, 4, 5=very much like me
pcqdlotr4r1/2Reversed version of LOT-R item 4 (child web at 16) itemchild webintegerordinal1=very much like me, 2, 3, 4, 5=not like me at all
pcqdlotr51/2EWQD LOT-R Optimism item 5, rarely count on (child web at 16), 1=not like me at all .. 5=very much like meitem child webintegerordinal1=not like me at all, 2, 3, 4, 5=very much like me
pcqdlotr5r1/2Reversed version of LOT-R item 5 (child web at 16) itemchild webintegerordinal1=very much like me, 2, 3, 4, 5=not like me at all
pcqdlotr61/2EWQD LOT-R Optimism item 6, expect good things (child web at 16), 1=not like me at all .. 5=very much like meitem child webintegerordinal1=not like me at all, 2, 3, 4, 5=very much like me
pcqdpers011/2EWQD Personality item 1, anxiousness (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpers021/2EWQD Personality item 2, angry hostility (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpers031/2EWQD Personality item 3, depressiveness (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpers041/2EWQD Personality item 4, self-conciousness (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpers051/2EWQD Personality item 5, impulsivity (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpers061/2EWQD Personality item 6, vulnerability (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpers071/2EWQD Personality item 7, warmth (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpers081/2EWQD Personality item 8, gregariousness (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpers091/2EWQD Personality item 9, assertiveness (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpers101/2EWQD Personality item 10, activity (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpers111/2EWQD Personality item 11, excitement-seeking (child web at 16), 1=low .. 5=highitemchild web integerordinal1=low, 2, 3, 4, 5=high
pcqdpers121/2EWQD Personality item 12, positive emotions (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpers131/2EWQD Personality item 13, fantasy (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpers141/2EWQD Personality item 14, aesthetics (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpers151/2EWQD Personality item 15, feelings (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpers161/2EWQD Personality item 16, actions (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpers171/2EWQD Personality item 17, ideas (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpers181/2EWQD Personality item 18, values (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpers191/2EWQD Personality item 19, trust (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpers201/2EWQD Personality item 20, straightforwardness (child web at 16), 1=low .. 5=highitemchild web integerordinal1=low, 2, 3, 4, 5=high
pcqdpers211/2EWQD Personality item 21, altruism (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpers221/2EWQD Personality item 22, compliance (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpers231/2EWQD Personality item 23, modesty (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpers241/2EWQD Personality item 24, tender-mindedness (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpers251/2EWQD Personality item 25, competence (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpers261/2EWQD Personality item 26, order (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpers271/2EWQD Personality item 27, dutifulness (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpers281/2EWQD Personality item 28, achievement (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpers291/2EWQD Personality item 29, self-discipline (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpers301/2EWQD Personality item 30, deliberation (child web at 16), 1=low .. 5=highitemchild webinteger ordinal1=low, 2, 3, 4, 5=high
pcqdpub011/2EWQD Puberty item 1, growth spurt (child web at 16), see value labelsitemchild webintegernominal1=not yet begun, 2=barely begun, 3=definitely begun, 4=completed
pcqdpub021/2EWQD Puberty item 2, body hair (child web at 16), see value labelsitemchild web integernominal1=not yet begun, 2=barely begun, 3=definitely begun, 4=completed
pcqdpub031/2EWQD Puberty item 3, skin change (child web at 16), see value labelsitemchild web integernominal1=not yet begun, 2=barely begun, 3=definitely begun, 4=completed
pcqdpub061/2EWQD Puberty item 6, breasts begun to grow (child web at 16), see value labelsitem child webintegernominal1=not yet begun, 2=barely begun, 3=definitely begun, 4=completed
pcqdpub071/2EWQD Puberty item 7, begun to menstruate (child web at 16), 1=yes 2=noitemchild webinteger nominal1=yes, 2=no
pcqdpub081/2EWQD Puberty item 8 (modified), age in years at start of menstruation (child web at 16), see value labelsderivedchild web integerquantitative9=9 or less, 10, 11, 12, 13, 14, 15=15 or more (years)
pcqdpub091/2EWQD Puberty item 9, voice change (child web at 16), see value labelsitemchild webintegernominal1=not yet begun, 2=barely begun, 3=definitely begun, 4=completed
pcqdpub101/2EWQD Puberty item 10, hair on face (child web at 16), see value labelsitemchild webintegernominal1=not yet begun, 2=barely begun, 3=definitely begun, 4=completed
pcqdquan1/2EWQD number of questions answered (child web at 16) itemchild webintegerquantitativeup to 74
pcqdseco011/2EWQD Academic Self-Concept item 1, doing tests (child web at 16), 1=not like me at all .. 5=very much like meitem child webintegerordinal1=not like me at all, 2, 3, 4, 5=very much like me
pcqdseco021/2EWQD Academic Self-Concept item 2, confident (child web at 16), 1=not like me at all .. 5=very much like meitem child webintegerordinal1=not like me at all, 2, 3, 4, 5=very much like me
pcqdseco031/2EWQD Academic Self-Concept item 3, discussing things (child web at 16), 1=not like me at all .. 5=very much like me itemchild webintegerordinal1=not like me at all, 2, 3, 4, 5=very much like me
pcqdseco041/2EWQD Academic Self-Concept item 4, need lots of help (child web at 16), 1=not like me at all .. 5=very much like me itemchild webintegerordinal1=not like me at all, 2, 3, 4, 5=very much like me
pcqdseco04r1/2Reversed version of Academic Self-Concept item 4 (child web at 16)itemchild webinteger ordinal1=very much like me, 2, 3, 4, 5=not like me at all
pcqdseco051/2EWQD Academic Self-Concept item 5, like difficult work (child web at 16), 1=not like me at all .. 5=very much like me itemchild webintegerordinal1=not like me at all, 2, 3, 4, 5=very much like me
pcqdseco061/2EWQD Academic Self-Concept item 6, usually work out (child web at 16), 1=not like me at all .. 5=very much like me itemchild webintegerordinal1=not like me at all, 2, 3, 4, 5=very much like me
pcqdseco071/2EWQD Academic Self-Concept item 7, not good solving problems (child web at 16), 1=not like me at all .. 5=very much like meitemchild webintegerordinal 1=not like me at all, 2, 3, 4, 5=very much like me
pcqdseco07r1/2Reversed version of Academic Self-Concept item 7 (child web at 16)itemchild webinteger ordinal1=very much like me, 2, 3, 4, 5=not like me at all
pcqdseco081/2EWQD Academic Self-Concept item 8, know the meaning (child web at 16), 1=not like me at all .. 5=very much like me itemchild webintegerordinal1=not like me at all, 2, 3, 4, 5=very much like me
pcqdseco091/2EWQD Academic Self-Concept item 9, schoolwork difficult (child web at 16), 1=not like me at all .. 5=very much like me itemchild webintegerordinal1=not like me at all, 2, 3, 4, 5=very much like me
pcqdseco09r1/2Reversed version of Academic Self-Concept item 9 (child web at 16)itemchild webinteger ordinal1=very much like me, 2, 3, 4, 5=not like me at all
pcqdseco101/2EWQD Academic Self-Concept item 10, clever (child web at 16), 1=not like me at all .. 5=very much like meitem child webintegerordinal1=not like me at all, 2, 3, 4, 5=very much like me
pcqdsees11/2EWQD Self-Esteem item 1, high self-esteem (child web at 16), 1=not like me at all .. 5=very much like meitem child webintegerordinal1=not like me at all, 2, 3, 4, 5=very much like me
pcqdsess1/2EWQD number of sessions used (child web at 16) itemchild webintegerquantitativeapprox. 1-3
pcqdstat1/2EWQD web test status (twin web at 16), see value labelsitemchild webintegernominal 0=not started (no data), 1=started but not finished (no data), 2=finished (data present), 3=abandoned or crashed or serial timeouts (data excluded), 4=random responses (data excluded)
pcqdttt1/2EWQD total time taken if completed in one session (child web at 16), minutesderivedchild webdecimal quantitativeapprox. 1-25 minutes
pcqdwtkg1/2EWQD Weight (child web at 16), kilograms itemchild webintegerquantitativeapprox. 40-100 kilograms
pcrtatm1/2Reaction Times test mean item answer time (child web at 16), secondsderivedchild webdecimal quantitativeapprox. 0.5-1.5 seconds
pcrtdata1/2Reaction Times test data present (child web at 16), 1Y 0Nitemchild webintegernominal 0=no, 1=yes
pcrtquan1/2Reaction Times test number of questions answered (child web at 16)itemchild webinteger quantitativeup to 40
pcrtstat1/2Reaction Times web test status (twin web at 16), see value labelsitemchild webintegernominal 0=not started (no data), 1=started but not finished (no data), 2=finished (data present), 3=abandoned or crashed or serial timeouts (data excluded), 4=random responses (data excluded)
pcrttmel1/2Reaction Times test time elapsed (child web at 16), secondsitemchild webintegerquantitative approx. 20-60 seconds
pcrttot1/2Reaction Times test total score (child web at 16), 0-40itemchild webintegerscale value 0 to 40
pcrtXXan1/2 (XX is the item number: 01-40)Reaction Times test item XX answer (child web at 16), 1/2/3/4=key pressed -1=timeout -4=crash itemchild webintegernominal1 to 4 (key pressed), -1=timeout, -4=item crashed
pcrtXXsc1/2 (XX is the item number: 01-40)Reaction Times test item XX score (child web at 16), 1=correct 0=wrongitem child webintegerordinal0=incorrect, 1=correct
pcrvatm1/2Ravens test mean item answer time (child web at 16), secondsderivedchild webdecimal quantitativeapprox. 1-60 seconds
pcrvdata1/2Ravens test data present (child web at 16), 1Y 0N itemchild webintegernominal0=no, 1=yes
pcrvquan1/2Ravens test number of questions answered (child web at 16)itemchild webintegerquantitative up to 30
pcrvsess1/2Ravens test number of sessions used (child web at 16)itemchild webintegerquantitative approx. 1-4
pcrvstat1/2Ravens web test status (twin web at 16), see value labelsitemchild webintegernominal 0=not started (no data), 1=started but not finished (no data), 2=finished (data present), 3=abandoned or crashed or serial timeouts (data excluded), 4=random responses (data excluded)
pcrvtmel1/2Ravens test time elapsed (child web at 16), seconds itemchild webintegerquantitativeapprox. 50-2000 seconds
pcrvtot1/2Ravens test total score (child web at 16), 0-30 itemchild webintegerscale value0 to 30
pcrvtota1/2Adjusted total score for Ravens web test at 16 (0-30)derivedchild webdecimalscale value 0 to 30
pcrvXYYan1/2 (X is the sub-test C/D/E/F, YY is the item number 01-12) Ravens test item XYY answer (child web at 16), 1/2/3/4/5/6/7/8=answer selected -2=discontinue -4=crashitemchild web integernominal1 to 8 (response selected), -2=discontinued, -4=item crashed
pcrvXYYsc1/2 (X is the sub-test C/D/E/F, YY is the item number 01-12) Ravens test item XYY score (child web at 16), 1=correct 0=wrongitem child webintegerordinal0=incorrect, 1=correct
pcscencrsm1/2School Engagement: Control/Relevance of School Work mean score (child web at 16), 1-4derivedchild web decimalscale value1 to 4
pcscenfagm1/2School Engagement: Future Aspirations/Goals mean score (child web at 16), 1-4derivedchild web decimalscale value1 to 4
pcscenfslm1/2School Engagement: Family Support for Learning mean score (child web at 16), 1-4derivedchild web decimalscale value1 to 4
pcscenm1/2School Engagement overall mean score (child web at 16), 1-4derivedchild webdecimalscale value1 to 4
pcscenpslm1/2School Engagement: Peer Support for Learning mean score (child web at 16), 1-4derivedchild web decimalscale value1 to 4
pcscentsrm1/2School Engagement: Teacher-Student Relations mean score (child web at 16), 1-4derivedchild web decimalscale value1 to 4
pcsecom1/2Academic Self-Concept overall mean score (child web at 16), 1-5derivedchild webdecimalscale value1 to 5
pcshsm1/2SHS overall mean score (child web at 16), 1-7 derivedchild webdecimalscale value1 to 7
pcunatm1/2Understanding Number test mean item answer time (child web at 16), secondsderivedchild webdecimal quantitativeapprox. 10-150 seconds
pcundata1/2Understanding Number test data present (child web at 16), 1Y 0Nitemchild webintegernominal 0=no, 1=yes
pcunquan1/2Understanding Number test number of questions answered (child web at 16)itemchild webinteger quantitativeup to 18
pcunsess1/2Understanding Number test number of sessions used (child web at 16)itemchild webinteger quantitativeapprox. 1-3
pcunstat1/2Understanding Number web test status (twin web at 16), see value labelsitemchild webinteger nominal0=not started (no data), 1=started but not finished (no data), 2=finished (data present), 3=abandoned or crashed or serial timeouts (data excluded), 4=random responses (data excluded)
pcuntmel1/2Understanding Number test time elapsed (child web at 16), secondsitemchild webinteger quantitativeapprox. 50-1500 seconds
pcuntot1/2Understanding Number test total score (child web at 16), 0-18itemchild webintegerscale value 0 to 18
pcuntota1/2Adjusted total score for Understanding Number web test at 16 (0-18)derivedchild webdecimal scale value0 to 18
pcunXXan1/2 (XX is the item number: 01-18)Understanding Number test item XX answer (child web at 16), [answer format varies between items], -1=timeout -2=discontinue -3=credit -4=crashitemchild web [varies][varies]various numeric or string formats: see 16 year maths test page for details; -1=timeout, -2=discontinued, -3=item credited, -4=item crashed
pcunXXsc1/2 (XX is the item number: 01-18)Understanding Number test item XX score (child web at 16), 1=correct 0=wrongitem child webintegerordinal0=incorrect, 1=correct
pcvcatm1/2Vocabulary test mean item answer time (child web at 16), secondsderivedchild webdecimal quantitativeapprox. 2-40 seconds
pcvcdata1/2Vocabulary test data present (child web at 16), 1Y 0Nitemchild webintegernominal 0=no, 1=yes
pcvcquan1/2Vocabulary test number of questions answered (child web at 16)itemchild webinteger quantitativeup to 33
pcvcsess1/2Vocabulary test number of sessions used (child web at 16)itemchild webintegerquantitative approx. 1-4
pcvcstat1/2Vocabulary web test status (twin web at 16), see value labelsitemchild webintegernominal 0=not started (no data), 1=started but not finished (no data), 2=finished (data present), 3=abandoned or crashed or serial timeouts (data excluded), 4=random responses (data excluded)
pcvctmel1/2Vocabulary test time elapsed (child web at 16), secondsitemchild webintegerquantitative approx. 50-1500 seconds
pcvctot1/2Vocabulary test total score (child web at 16), 0-33 itemchild webintegerscale value0 to 33
pcvctota1/2Adjusted total score for Mill Hill Vocabulary web test at 16 (0-33)derivedchild webdecimal scale value0 to 33
pcvcXXan1/2 (XX is the item number: 01-33)Vocabulary test item XX answer (child web at 16), 1/2/3/4/5/6=answer selected -2=discontinued -4=crashitemchild webintegernominal 1=A, 2=B, 3=C, 4=D, 5=E, 6=F, -2=discontinued, -4=item crashed
pcvcXXsc1/2 (XX is the item number: 01-33)Vocabulary test item XX score (child web at 16), 1=correct 0=wrongitemchild web integerordinal0=incorrect, 1=correct
pcwebage1/2Age of twin during web tests at 16 (mean of start and end ages)derivedchild webdecimal quantitativeapprox. 15.5-17 years old
pcwebdata1/2Child web data present at 16, 1Y 0Nderived child webintegernominal0=no, 1=yes
pcwebLLCage1 Age of twin when 16 year web study activities were started (for use in LLC TRE), months derivedadminintegerquantitativeapprox. 191 to 205 (months)
pcwebLLCdate1 Date when 16 year web study activities were started (for use in LLC TRE), yyyy-mm string derivedadminstringdate valueapprox. '2010-09' to '2011-11'
pcwebstat1/2Twin web battery status at 16, 0=not started 1=started 2=finisheditemchild webinteger nominal0=not started, 1=started but not finished, 2=finished
pcynatm1/2Yes/No test mean item answer time (child web at 16), secondsderivedchild webdecimal quantitativeapprox. 1-4 seconds
pcyndata1/2Yes/No test data present (child web at 16), 1Y 0N itemchild webintegernominal0=no, 1=yes
pcynquan1/2Yes/No test number of questions answered (child web at 16)itemchild webintegerquantitative up to 98
pcynstat1/2Yes/No Number web test status (twin web at 16), see value labelsitemchild webintegernominal 0=not started (no data), 1=started but not finished (no data), 2=finished (data present), 3=abandoned or crashed or serial timeouts (data excluded), 4=random responses (data excluded)
pcyntmel1/2Yes/No test time elapsed (child web at 16), seconds itemchild webintegerquantitativeapprox. 150 seconds
pcyntot1/2Yes/No test total score (child web at 16), 0-98 itemchild webintegerscale value0 to 98
pcynXXan1/2 (XX is the item number: 01-98)Yes/No test item XX answer (child web at 16), 1=yes 2=no -1=timeout -2=discontinue -4=crash itemchild webintegernominal1=yes, 2=no, -1=timeout, -2=discontinued, -4=item crashed
pcynXXsc1/2 (XX is the item number: 01-98)Yes/No test item XX score (child web at 16), 1=correct 0=wrongitemchild web integerordinal0=incorrect, 1=correct
ppbhageAge of twin on return of behaviour study parent booklet at 16derivedadmindecimalquantitative approx. 16.5-17.5 years old
ppbhanx011/2Anxiety item 1, afraid of small spaces (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhanx021/2Anxiety item 2, long time to warm to strangers (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitem parent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhanx031/2Anxiety item 3, afraid in social situations (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhanx041/2Anxiety item 4, check things are done right (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhanx051/2Anxiety item 5, asks for reassurance (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhanx061/2Anxiety item 6, does things over and over (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhanx071/2Anxiety item 7, shy and timid (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnr integerordinal0=not true, 1=quite true, 2=very true
ppbhanx081/2Anxiety item 8, afraid of medical procedures (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitem parent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhanx091/2Anxiety item 9, twitches or mannerisms (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhanx101/2Anxiety item 10, does not enjoy self (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhanx111/2Anxiety item 11, critical of self (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnr integerordinal0=not true, 1=quite true, 2=very true
ppbhanx121/2Anxiety item 12, complains or whines (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhanx131/2Anxiety item 13, low self confidence (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhanx141/2Anxiety item 14, fussy or over particular (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhanx151/2Anxiety item 15, blames self (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnr integerordinal0=not true, 1=quite true, 2=very true
ppbhanx161/2Anxiety item 16, upset when parent leaves (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhanx171/2Anxiety item 17, seems worked up (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnr integerordinal0=not true, 1=quite true, 2=very true
ppbhanx181/2Anxiety item 18, afraid of animals (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhanx191/2Anxiety item 19, bad things will happen (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhanxfeart1/2ARBQ Anxiety fear subscale (parent behaviour qnr at 16), 0-6derivedparent qnrdecimalscale value0 to 6
ppbhanxnafft1/2ARBQ Anxiety negative affect subscale (parent behaviour qnr at 16), 0-8derivedparent qnrdecimalscale value0 to 8
ppbhanxncogt1/2ARBQ Anxiety negative cognition subscale (parent behaviour qnr at 16), 0-10derivedparent qnrdecimalscale value0 to 10
ppbhanxocbt1/2ARBQ Anxiety OCB (obsessive compulsive behaviour) subscale (parent behaviour qnr at 16), 0-6derivedparent qnrdecimalscale value0 to 6
ppbhanxshyt1/2ARBQ Anxiety shyness (social anxiety) subscale (parent behaviour qnr at 16), 0-6derivedparent qnrdecimalscale value0 to 6
ppbhanxt1/2ARBQ Anxiety overall total scale (parent behaviour qnr at 16), 0-38derivedparent qnrdecimalscale value0 to 38
ppbhaq011/2Autism Quotient item 1, prefers to do things with others (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agree itemparent qnrintegerordinal0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaq01r1/2Reversed version of Autism Quotient item 1 (parent behaviour qnr at 16)itemparent qnrinteger ordinal0=strongly agree, 1=slightly agree, 2=slightly disagree, 3=strongly disagree
ppbhaq021/2Autism Quotient item 2, finds social situations easy (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agree itemparent qnrintegerordinal0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaq02r1/2Reversed version of Autism Quotient item 2 (parent behaviour qnr at 16)itemparent qnrinteger ordinal0=strongly agree, 1=slightly agree, 2=slightly disagree, 3=strongly disagree
ppbhaq031/2Autism Quotient item 3, rather go to library (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agreeitem parent qnrintegerordinal0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaq041/2Autism Quotient item 4, drawn more strongly to people (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agree itemparent qnrintegerordinal0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaq04r1/2Reversed version of Autism Quotient item 4 (parent behaviour qnr at 16)itemparent qnrinteger ordinal0=strongly agree, 1=slightly agree, 2=slightly disagree, 3=strongly disagree
ppbhaq051/2Autism Quotient item 5, hard to make new friends (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agree itemparent qnrintegerordinal0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaq061/2Autism Quotient item 6, enjoys social occasions (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agree itemparent qnrintegerordinal0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaq06r1/2Reversed version of Autism Quotient item 6 (parent behaviour qnr at 16)itemparent qnrinteger ordinal0=strongly agree, 1=slightly agree, 2=slightly disagree, 3=strongly disagree
ppbhaq071/2Autism Quotient item 7, enjoys meeting people (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agree itemparent qnrintegerordinal0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaq07r1/2Reversed version of Autism Quotient item 7 (parent behaviour qnr at 16)itemparent qnrinteger ordinal0=strongly agree, 1=slightly agree, 2=slightly disagree, 3=strongly disagree
ppbhaq081/2Autism Quotient item 8, anxious in new situations (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agree itemparent qnrintegerordinal0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaq091/2Autism Quotient item 9, do things the same way over (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agree itemparent qnrintegerordinal0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaq101/2Autism Quotient item 10, not upset if routine disturbed (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agreeitemparent qnrintegerordinal 0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaq10r1/2Reversed version of Autism Quotient item 10 (parent behaviour qnr at 16)itemparent qnrinteger ordinal0=strongly agree, 1=slightly agree, 2=slightly disagree, 3=strongly disagree
ppbhaq111/2Autism Quotient item 11, enjoys doing spontaneously (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agree itemparent qnrintegerordinal0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaq11r1/2Reversed version of Autism Quotient item 11 (parent behaviour qnr at 16)itemparent qnrinteger ordinal0=strongly agree, 1=slightly agree, 2=slightly disagree, 3=strongly disagree
ppbhaq121/2Autism Quotient item 12, gets absorbed in one thing (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agree itemparent qnrintegerordinal0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaq131/2Autism Quotient item 13, keeps track several conversations (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agreeitemparent qnrinteger ordinal0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaq13r1/2Reversed version of Autism Quotient item 13 (parent behaviour qnr at 16)itemparent qnrinteger ordinal0=strongly agree, 1=slightly agree, 2=slightly disagree, 3=strongly disagree
ppbhaq141/2Autism Quotient item 14, easy to do more than one thing (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agree itemparent qnrintegerordinal0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaq14r1/2Reversed version of Autism Quotient item 14 (parent behaviour qnr at 16)itemparent qnrinteger ordinal0=strongly agree, 1=slightly agree, 2=slightly disagree, 3=strongly disagree
ppbhaq151/2Autism Quotient item 15, switch back after interruption (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agreeitemparent qnrintegerordinal 0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaq15r1/2Reversed version of Autism Quotient item 15 (parent behaviour qnr at 16)itemparent qnrinteger ordinal0=strongly agree, 1=slightly agree, 2=slightly disagree, 3=strongly disagree
ppbhaq161/2Autism Quotient item 16, create picture in imagination (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agreeitemparent qnrintegerordinal 0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaq16r1/2Reversed version of Autism Quotient item 16 (parent behaviour qnr at 16)itemparent qnrinteger ordinal0=strongly agree, 1=slightly agree, 2=slightly disagree, 3=strongly disagree
ppbhaq171/2Autism Quotient item 17, imagine characters in book (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agree itemparent qnrintegerordinal0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaq17r1/2Reversed version of Autism Quotient item 17 (parent behaviour qnr at 16)itemparent qnrinteger ordinal0=strongly agree, 1=slightly agree, 2=slightly disagree, 3=strongly disagree
ppbhaq181/2Autism Quotient item 18, making up stories easy (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agree itemparent qnrintegerordinal0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaq18r1/2Reversed version of Autism Quotient item 18 (parent behaviour qnr at 16)itemparent qnrinteger ordinal0=strongly agree, 1=slightly agree, 2=slightly disagree, 3=strongly disagree
ppbhaq191/2Autism Quotient item 19, character intentions in book (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agree itemparent qnrintegerordinal0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaq201/2Autism Quotient item 20, imagine being someone else (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agree itemparent qnrintegerordinal0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaq211/2Autism Quotient item 21, play pretending games when young (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agree itemparent qnrintegerordinal0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaq21r1/2Reversed version of Autism Quotient item 21 (parent behaviour qnr at 16)itemparent qnrinteger ordinal0=strongly agree, 1=slightly agree, 2=slightly disagree, 3=strongly disagree
ppbhaq221/2Autism Quotient item 22, work out what others thinking (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agreeitemparent qnrintegerordinal 0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaq22r1/2Reversed version of Autism Quotient item 22 (parent behaviour qnr at 16)itemparent qnrinteger ordinal0=strongly agree, 1=slightly agree, 2=slightly disagree, 3=strongly disagree
ppbhaq231/2Autism Quotient item 23, difficult to work out intentions (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agreeitemparent qnrintegerordinal 0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaq241/2Autism Quotient item 24, notices strings of information (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agreeitemparent qnrintegerordinal 0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaq251/2Autism Quotient item 25, fascinated by dates (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agreeitem parent qnrintegerordinal0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaq261/2Autism Quotient item 26, fascinated by numbers (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agree itemparent qnrintegerordinal0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaq271/2Autism Quotient item 27, notices patterns all the time (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agree itemparent qnrintegerordinal0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaq281/2Autism Quotient item 28, collects information (parent behaviour qnr at 16), 0=strongly disagree .. 3=strongly agree itemparent qnrintegerordinal0=strongly disagree, 1=slightly disagree, 2=slightly agree, 3=strongly agree
ppbhaqatst1/2Autism Quotient Attention Switching scale (parent behaviour qnr at 16), 0-24derivedparent qnr decimalscale value0 to 24
ppbhaqdett1/2Autism Quotient Attention to Detail scale (parent behaviour qnr at 16), 0-15derivedparent qnr decimalscale value0 to 15
ppbhaqimat1/2Autism Quotient Imagination scale (parent behaviour qnr at 16), 0-18derivedparent qnr decimalscale value0 to 18
ppbhaqsoct1/2Autism Quotient Social scale (parent behaviour qnr at 16), 0-27derivedparent qnrdecimal scale value0 to 27
ppbhaqt1/2Autism Quotient total scale (parent behaviour qnr at 16), 0-84derivedparent qnrdecimalscale value0 to 84
ppbhasthma1/2Asthma: ever had it (parent behaviour qnr at 16, not cohort 1), 0=no 1=yes but not in last year 2=yes stillitem parent qnrintegernominal0=no, 1=yes but no symptoms in the last 12 months, 2=yes still has asthma
ppbhasthmed1/2Asthma: taken medication (parent behaviour qnr at 16, not cohort 1), 1Y 0Nitemparent qnrinteger nominal0=no, 1=yes
ppbhasthmedf1/2Asthma: medication how often (parent behaviour qnr at 16, not cohort 1), 1=daily 2=weekly 3=monthly 4=lessitem parent qnrintegerordinal1=daily, 2=a few times a week, 3=a few times a month, 4=less often
ppbhconn011/2Conners item 1, always on the go (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnrintegerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhconn021/2Conners item 2, sustained mental effort (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitem parent qnrintegerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhconn031/2Conners item 3, difficulties sustaining attention (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitem parent qnrintegerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhconn041/2Conners item 4, does not seem to listen (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitem parent qnrintegerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhconn051/2Conners item 5, runs about excessively (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitem parent qnrintegerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhconn061/2Conners item 6, does not follow through (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitem parent qnrintegerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhconn071/2Conners item 7, diffulty organising (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitem parent qnrintegerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhconn081/2Conners item 8, talks excessively (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitem parent qnrintegerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhconn091/2Conners item 9, fails to give close attention (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitem parent qnrintegerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhconn101/2Conners item 10, difficulty queueing (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitem parent qnrintegerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhconn111/2Conners item 11, interrupts conversations (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitem parent qnrintegerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhconn121/2Conners item 12, forgetful (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnr integerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhconn131/2Conners item 13, fidgets (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnr integerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhconn141/2Conners item 14, difficulty playing quietly (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitem parent qnrintegerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhconn151/2Conners item 15, often loses things (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitem parent qnrintegerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhconn161/2Conners item 16, regularly leaves seat (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitem parent qnrintegerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhconn171/2Conners item 17, easily distracted (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitem parent qnrintegerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhconn181/2Conners item 18, blurts out answers (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitem parent qnrintegerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhconn191/2Conners item 19, changes mood quickly (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitem parent qnrintegerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhconn201/2Conners item 20, cries often (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnr integerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhconn211/2Conners item 21, temper outbursts (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitem parent qnrintegerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhconnemlt1/2Conners Emotional Lability scale (parent behaviour qnr at 16), 0-9derivedparent qnrdecimal scale value0 to 9
ppbhconnimpt1/2Conners Impulsivity scale (parent behaviour qnr at 16), 0-27derivedparent qnrdecimal scale value0 to 27
ppbhconninat1/2Conners Inattention scale (parent behaviour qnr at 16), 0-27derivedparent qnrdecimal scale value0 to 27
ppbhconnt1/2Conners total ADHD scale (parent behaviour qnr at 16), 0-54derivedparent qnrdecimalscale value0 to 54
ppbhdataParent behaviour booklet data present at 16, 1Y 0N itemparent qnrintegernominal0=no, 1=yes
ppbhicut011/2Inventory of Callous Unemotional Traits item 1, expresses feelings openly (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnrinteger ordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhicut01r1/2Reversed version of Inventory of Callous-Unemotional Traits item 1 (parent behaviour qnr at 16)item parent qnrintegerordinal0=definitely true, 1=mainly true, 2=somewhat true, 3=not at all true
ppbhicut021/2Inventory of Callous Unemotional Traits item 2, does not know right from wrong (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnrinteger ordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhicut031/2Inventory of Callous Unemotional Traits item 3, cares about work (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnrintegerordinal 0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhicut03r1/2Reversed version of Inventory of Callous-Unemotional Traits item 3 (parent behaviour qnr at 16)item parent qnrintegerordinal0=definitely true, 1=mainly true, 2=somewhat true, 3=not at all true
ppbhicut041/2Inventory of Callous Unemotional Traits item 4, does not care who hurt (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnrinteger ordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhicut051/2Inventory of Callous Unemotional Traits item 5, feels bad or guilty (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnrinteger ordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhicut05r1/2Reversed version of Inventory of Callous-Unemotional Traits item 5 (parent behaviour qnr at 16)item parent qnrintegerordinal0=definitely true, 1=mainly true, 2=somewhat true, 3=not at all true
ppbhicut061/2Inventory of Callous Unemotional Traits item 6, does not show emotions (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnrinteger ordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhicut071/2Inventory of Callous Unemotional Traits item 7, does not care being on time (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnrinteger ordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhicut081/2Inventory of Callous Unemotional Traits item 8, concerned about feelings (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnrinteger ordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhicut08r1/2Reversed version of Inventory of Callous-Unemotional Traits item 8 (parent behaviour qnr at 16)item parent qnrintegerordinal0=definitely true, 1=mainly true, 2=somewhat true, 3=not at all true
ppbhicut091/2Inventory of Callous Unemotional Traits item 9, cares if in trouble (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnrinteger ordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhicut09r1/2Reversed version of Inventory of Callous-Unemotional Traits item 9 (parent behaviour qnr at 16)item parent qnrintegerordinal0=definitely true, 1=mainly true, 2=somewhat true, 3=not at all true
ppbhicut101/2Inventory of Callous Unemotional Traits item 10, does not let feelings control (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnrinteger ordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhicut111/2Inventory of Callous Unemotional Traits item 11, does not care about doing well (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnrinteger ordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhicut121/2Inventory of Callous Unemotional Traits item 12, cold and uncaring (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnrintegerordinal 0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhicut131/2Inventory of Callous Unemotional Traits item 13, admits to being wrong (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnrinteger ordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhicut13r1/2Reversed version of Inventory of Callous-Unemotional Traits item 13 (parent behaviour qnr at 16)item parent qnrintegerordinal0=definitely true, 1=mainly true, 2=somewhat true, 3=not at all true
ppbhicut141/2Inventory of Callous Unemotional Traits item 14, easy to tell how feeling (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnrinteger ordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhicut14r1/2Reversed version of Inventory of Callous-Unemotional Traits item 14 (parent behaviour qnr at 16)item parent qnrintegerordinal0=definitely true, 1=mainly true, 2=somewhat true, 3=not at all true
ppbhicut151/2Inventory of Callous Unemotional Traits item 15, always tries best (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnrintegerordinal 0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhicut15r1/2Reversed version of Inventory of Callous-Unemotional Traits item 15 (parent behaviour qnr at 16)item parent qnrintegerordinal0=definitely true, 1=mainly true, 2=somewhat true, 3=not at all true
ppbhicut161/2Inventory of Callous Unemotional Traits item 16, apologies to people hurt (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnrinteger ordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhicut16r1/2Reversed version of Inventory of Callous-Unemotional Traits item 16 (parent behaviour qnr at 16)item parent qnrintegerordinal0=definitely true, 1=mainly true, 2=somewhat true, 3=not at all true
ppbhicut171/2Inventory of Callous Unemotional Traits item 17, tries not to hurt feelings (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnrinteger ordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhicut17r1/2Reversed version of Inventory of Callous-Unemotional Traits item 17 (parent behaviour qnr at 16)item parent qnrintegerordinal0=definitely true, 1=mainly true, 2=somewhat true, 3=not at all true
ppbhicut181/2Inventory of Callous Unemotional Traits item 18, shows no remorse (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnrintegerordinal 0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhicut191/2Inventory of Callous Unemotional Traits item 19, expressive and emotional (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnrinteger ordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhicut19r1/2Reversed version of Inventory of Callous-Unemotional Traits item 19 (parent behaviour qnr at 16)item parent qnrintegerordinal0=definitely true, 1=mainly true, 2=somewhat true, 3=not at all true
ppbhicut201/2Inventory of Callous Unemotional Traits item 20, does not put time (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnrintegerordinal 0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhicut211/2Inventory of Callous Unemotional Traits item 21, feelings of others unimportant (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnrinteger ordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhicut221/2Inventory of Callous Unemotional Traits item 22, hides feelings (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnrintegerordinal 0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhicut231/2Inventory of Callous Unemotional Traits item 23, works hard (parent behaviour qnr at 16), 0=not at all .. 3=definitely true itemparent qnrintegerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhicut23r1/2Reversed version of Inventory of Callous-Unemotional Traits item 23 (parent behaviour qnr at 16)item parent qnrintegerordinal0=definitely true, 1=mainly true, 2=somewhat true, 3=not at all true
ppbhicut241/2Inventory of Callous Unemotional Traits item 24, make others feel good (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnrinteger ordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhicut24r1/2Reversed version of Inventory of Callous-Unemotional Traits item 24 (parent behaviour qnr at 16)item parent qnrintegerordinal0=definitely true, 1=mainly true, 2=somewhat true, 3=not at all true
ppbhicutcalt1/2ICUT Callous scale (parent behaviour qnr at 16), 0-33derivedparent qnrdecimalscale value 0 to 33
ppbhicutt1/2ICUT total scale (parent behaviour qnr at 16), 0-72 derivedparent qnrdecimalscale value0 to 72
ppbhicutunct1/2ICUT Uncaring scale (parent behaviour qnr at 16), 0-24derivedchild qnrdecimalscale value0 to 24
ppbhicutunet1/2ICUT Unemotional scale (parent behaviour qnr at 16), 0-15derivedparent qnrdecimalscale value0 to 15
ppbhlfev01n1/2Life Events item 1, loss of parent job, negative rating (parent behaviour qnr at 16), see value labelsitemparent qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppbhlfev02n1/2Life Events item 2, parent separation, negative rating (parent behaviour qnr at 16), see value labelsitemparent qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppbhlfev03n1/2Life Events item 3, drugs, negative rating (parent behaviour qnr at 16), see value labelsitemparent qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppbhlfev04n1/2Life Events item 4, death of friend, negative rating (parent behaviour qnr at 16), see value labelsitemparent qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppbhlfev05n1/2Life Events item 5, hospitalised, negative rating (parent behaviour qnr at 16), see value labelsitemparent qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppbhlfev06n1/2Life Events item 6, sent away, negative rating (parent behaviour qnr at 16), see value labelsitemparent qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppbhlfev06p1/2Life Events item 6, sent away, positive rating (parent behaviour qnr at 16), see value labelsitemparent qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppbhlfev07n1/2Life Events item 7, breaking up, negative rating (parent behaviour qnr at 16), see value labelsitemparent qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppbhlfev08n1/2Life Events item 8, sibling hospitalised, negative rating (parent behaviour qnr at 16), see value labelsitemparent qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppbhlfev09n1/2Life Events item 9, school suspension, negative rating (parent behaviour qnr at 16), see value labelsitemparent qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppbhlfev10n1/2Life Events item 10, failing exam, negative rating (parent behaviour qnr at 16), see value labelsitemparent qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppbhlfev11n1/2Life Events item 11, parent remarried, negative rating (parent behaviour qnr at 16), see value labelsitemparent qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppbhlfev11p1/2Life Events item 11, parent remarried, positive rating (parent behaviour qnr at 16), see value labelsitemparent qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppbhlfev12n1/2Life Events item 12, parent hospitalised, negative rating (parent behaviour qnr at 16), see value labelsitemparent qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppbhlfev14n1/2Life Events item 14, parent income decreased, negative rating (parent behaviour qnr at 16), see value labelsitemparent qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppbhlfev16n1/2Life Events item 16, achievement, negative rating (parent behaviour qnr at 16), see value labelsitemparent qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppbhlfev16p1/2Life Events item 16, achievement, positive rating (parent behaviour qnr at 16), see value labelsitemparent qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppbhlfev17n1/2Life Events item 17, parent arguments decreased, negative rating (parent behaviour qnr at 16), see value labelsitemparent qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppbhlfev17p1/2Life Events item 17, parent arguments decreased, positive rating (parent behaviour qnr at 16), see value labelsitemparent qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppbhlfev18p1/2Life Events item 18, joined church, positive rating (parent behaviour qnr at 16), see value labelsitemparent qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppbhlfev19n1/2Life Events item 19, started dating, negative rating (parent behaviour qnr at 16), see value labelsitemparent qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppbhlfev19p1/2Life Events item 19, started dating, positive rating (parent behaviour qnr at 16), see value labelsitemparent qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppbhlfev20n1/2Life Events item 20, new school, negative rating (parent behaviour qnr at 16), see value labelsitemparent qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppbhlfev20p1/2Life Events item 20, new school, positive rating (parent behaviour qnr at 16), see value labelsitemparent qnrintegerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppbhlfevnat1/2Life events: count of negative events that affected twin (parent behaviour qnr at 16), see value labelsderivedparent qnrintegerordinal0, 1, 2, 3, 4, 5 or more
ppbhlfevnnt1/2Life events: count of negative events that occurred with no effect on twin (parent behaviour qnr at 16), see value labelsderivedparent qnrintegerordinal0, 1, 2, 3 or more
ppbhlfevpat1/2Life events: count of positive events that affected twin (parent behaviour qnr at 16), see value labelsderivedparent qnrintegerordinal0, 1, 2, 3, 4 or more
ppbhlfevpnt1/2Life events: count of positive events that occurred with no effect on twin (parent behaviour qnr at 16), see value labelsderivedparent qnrintegerordinal0, 1, 2, 3 or more
ppbhLLCage Age of twin when parent 16 year behaviour booklet returned (for use in LLC TRE), months derivedadminintegerquantitativeapprox. 180 to 208 (months)
ppbhLLCdate Date when parent 16 year behaviour booklet returned (for use in LLC TRE), yyyy-mm string derivedadminstringdate valueapprox. '2011-02' to '2012-06'
ppbhmfq011/2MFQ item 1, did not enjoy anything (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhmfq021/2MFQ item 2, felt unreasonably tired (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhmfq031/2MFQ item 3, felt no good (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnr integerordinal0=not true, 1=quite true, 2=very true
ppbhmfq041/2MFQ item 4, cried a lot (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnr integerordinal0=not true, 1=quite true, 2=very true
ppbhmfq051/2MFQ item 5, found it hard to think (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhmfq061/2MFQ item 6, hated self (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnr integerordinal0=not true, 1=quite true, 2=very true
ppbhmfq071/2MFQ item 7, felt a bad person (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnr integerordinal0=not true, 1=quite true, 2=very true
ppbhmfq081/2MFQ item 8, felt lonely (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnr integerordinal0=not true, 1=quite true, 2=very true
ppbhmfq091/2MFQ item 9, thought nobody loved (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnr integerordinal0=not true, 1=quite true, 2=very true
ppbhmfq101/2MFQ item 10, never as good as others (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhmfq111/2MFQ item 11, did everything wrong (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnr integerordinal0=not true, 1=quite true, 2=very true
ppbhmfqt1/2MFQ total scale (parent behaviour qnr at 16), 0-22 derivedparent qnrdecimalscale value0 to 22
ppbhpapa11/2Paranoid Parenting item 1, others might harm your child (parent behaviour qnr at 16), 0=not at all .. 3=to great extent itemparent qnrintegerordinal0=not at all, 1=a little, 2=moderately, 3=to a great extent
ppbhpapa21/2Paranoid Parenting item 2, dangerous world for child (parent behaviour qnr at 16), 0=not at all .. 3=to great extent itemparent qnrintegerordinal0=not at all, 1=a little, 2=moderately, 3=to a great extent
ppbhpapa31/2Paranoid Parenting item 3, worried about abduction (parent behaviour qnr at 16), 0=not at all .. 3=to great extentitem parent qnrintegerordinal0=not at all, 1=a little, 2=moderately, 3=to a great extent
ppbhpapa41/2Paranoid Parenting item 4, age child allowed out alone (parent behaviour qnr at 16), 1=less than 5 .. 7=15 or more itemparent qnrintegerordinal1=<5, 2=5-6, 3=7-8, 4=9-10, 5=11-12, 6=13-14, 7=15+
ppbhrelbipaRelatives with Bipolar (parent behaviour qnr at 16), 1Y 0Nitemparent qnrintegernominal 0=no, 1=yes
ppbhrelbipbRelatives with Bipolar, sibling (parent behaviour qnr at 16), 1Y 0Nitemparent qnrinteger nominal0=no, 1=yes
ppbhrelbipeRelatives with Bipolar, parent (parent behaviour qnr at 16), 1Y 0Nitemparent qnrinteger nominal0=no, 1=yes
ppbhrelbipgRelatives with Bipolar, grandparent (parent behaviour qnr at 16), 1Y 0Nitemparent qnrinteger nominal0=no, 1=yes
ppbhrelbiphRelatives with Bipolar, aunt/uncle (parent behaviour qnr at 16), 1Y 0Nitemparent qnrinteger nominal0=no, 1=yes
ppbhrelbipiRelatives with Bipolar, cousin (parent behaviour qnr at 16), 1Y 0Nitemparent qnrinteger nominal0=no, 1=yes
ppbhrelbipjRelatives with Bipolar, other (parent behaviour qnr at 16), 1Y 0Nitemparent qnrinteger nominal0=no, 1=yes
ppbhrelschaRelatives with Schizophrenia (parent behaviour qnr at 16), 1Y 0Nitemparent qnrinteger nominal0=no, 1=yes
ppbhrelschbRelatives with Schizophrenia, sibling (parent behaviour qnr at 16), 1Y 0Nitemparent qnrinteger nominal0=no, 1=yes
ppbhrelscheRelatives with Schizophrenia, parent (parent behaviour qnr at 16), 1Y 0Nitemparent qnrinteger nominal0=no, 1=yes
ppbhrelschgRelatives with Schizophrenia, grandparent (parent behaviour qnr at 16), 1Y 0Nitemparent qnrinteger nominal0=no, 1=yes
ppbhrelschhRelatives with Schizophrenia, aunt/uncle (parent behaviour qnr at 16), 1Y 0Nitemparent qnrinteger nominal0=no, 1=yes
ppbhrelschiRelatives with Schizophrenia, cousin (parent behaviour qnr at 16), 1Y 0Nitemparent qnrinteger nominal0=no, 1=yes
ppbhrelschjRelatives with Schizophrenia, other (parent behaviour qnr at 16), 1Y 0Nitemparent qnrinteger nominal0=no, 1=yes
ppbhsans011/2SANS item 1, fails to smile (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnr integerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhsans021/2SANS item 2, seems emotionally flat (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitem parent qnrintegerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhsans031/2SANS item 3, gives brief answers (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnrintegerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhsans041/2SANS item 4, does not have much to say (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitem parent qnrintegerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhsans051/2SANS item 5, sits around doing nothing (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitem parent qnrintegerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhsans061/2SANS item 6, lack of energy (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnr integerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhsans071/2SANS item 7, few interests (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnr integerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhsans081/2SANS item 8, few friends (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnr integerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhsans091/2SANS item 9, does not pay attention (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitem parent qnrintegerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhsans101/2SANS item 10, inattentive (parent behaviour qnr at 16), 0=not at all .. 3=definitely trueitemparent qnr integerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppbhsansafft1/2SANS Affective Flattening scale (parent behaviour qnr at 16), 0-6derivedparent qnrdecimal scale value0 to 6
ppbhsansalot1/2SANS Alogia scale (parent behaviour qnr at 16), 0-6derivedparent qnrdecimalscale value 0 to 6
ppbhsansanat1/2SANS Anhedonia-Associality scale (parent behaviour qnr at 16), 0-6derivedparent qnrdecimal scale value0 to 6
ppbhsansattt1/2SANS Attention scale (parent behaviour qnr at 16), 0-6derivedparent qnrdecimalscale value0 to 6
ppbhsansavat1/2SANS Avolition-Apathy scale (parent behaviour qnr at 16), 0-6derivedparent qnrdecimal scale value0 to 6
ppbhsanst1/2SANS total scale (parent behaviour qnr at 16), 0-30 derivedparent qnrdecimalscale value0 to 30
ppbhsdqbeht1/2SDQ Behaviour Problems total scale (parent behaviour qnr at 16), 0-24derivedparent qnrdecimalscale value0 to 24
ppbhsdqcon11/2SDQ Conduct item 1, hot temper (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhsdqcon21/2SDQ Conduct item 2, follows instructions (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhsdqcon2r1/2Reversed version of SDQ Conduct item 2 (parent behaviour qnr at 16)itemparent qnrintegerordinal0=very true, 1=quite true, 2=not true
ppbhsdqcon31/2SDQ Conduct item 3, fights or bullies friends (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhsdqcon41/2SDQ Conduct item 4, often lies or cheats (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhsdqcon51/2SDQ Conduct item 5, steals (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhsdqcont1/2SDQ Conduct scale (parent behaviour qnr at 16), 0-10derivedparent qnrdecimalscale value0 to 10
ppbhsdqhyp11/2SDQ Hyperactivity item 1, restless or overactive (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhsdqhyp21/2SDQ Hyperactivity item 2, constantly fidgeting (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhsdqhyp31/2SDQ Hyperactivity item 3, easily distracted (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhsdqhyp41/2SDQ Hyperactivity item 4, thinks things out (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhsdqhyp4r1/2Reversed version of SDQ Hyperactivity item 4 (parent behaviour qnr at 16)itemparent qnrintegerordinal0=very true, 1=quite true, 2=not true
ppbhsdqhyp51/2SDQ Hyperactivity item 5, sees tasks through (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhsdqhyp5r1/2Reversed version of SDQ Hyperactivity item 5 (parent behaviour qnr at 16)itemparent qnrintegerordinal0=very true, 1=quite true, 2=not true
ppbhsdqhypt1/2SDQ Hyperactivity scale (parent behaviour qnr at 16), 0-10derivedparent qnrdecimalscale value0 to 10
ppbhsdqper21/2SDQ Peer item 2, at least one good friend (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhsdqper2r1/2Reversed version of SDQ Peer item 2 (parent behaviour qnr at 16)itemparent qnrintegerordinal0=very true, 1=quite true, 2=not true
ppbhsdqper31/2SDQ Peer item 3, generally liked (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhsdqper3r1/2Reversed version of SDQ Peer item 3 (parent behaviour qnr at 16)itemparent qnrintegerordinal0=very true, 1=quite true, 2=not true
ppbhsdqpro11/2SDQ Prosocial item 1, considerate of feelings (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhsdqpro21/2SDQ Prosocial item 2, shares readily (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhsdqpro31/2SDQ Prosocial item 3, helpful if someone hurt (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhsdqpro41/2SDQ Prosocial item 4, kind to younger people (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhsdqpro51/2SDQ Prosocial item 5, volunteers to help (parent behaviour qnr at 16), 0=not 1=quite 2=very trueitemparent qnrintegerordinal0=not true, 1=quite true, 2=very true
ppbhsdqprot1/2SDQ Prosocial scale (parent behaviour qnr at 16), 0-10derivedparent qnrdecimalscale value0 to 10
ppbhsktt1a1/2Skills and Talents item 1, striking skill (parent behaviour qnr at 16), 1Y 0Nitemparent qnrinteger nominal0=no, 1=yes
ppbhsktt1b1/2Skills and Talents item 1, striking skill: maths (parent behaviour qnr at 16), 1Y 0Nitemparent qnr integernominal0=no, 1=yes
ppbhsktt1c1/2Skills and Talents item 1, striking skill: music (parent behaviour qnr at 16), 1Y 0Nitemparent qnr integernominal0=no, 1=yes
ppbhsktt1d1/2Skills and Talents item 1, striking skill: art (parent behaviour qnr at 16), 1Y 0Nitemparent qnr integernominal0=no, 1=yes
ppbhsktt1e1/2Skills and Talents item 1, striking skill: memory (parent behaviour qnr at 16), 1Y 0Nitemparent qnr integernominal0=no, 1=yes
ppbhsktt1f1/2Skills and Talents item 1, striking skill: science (parent behaviour qnr at 16), 1Y 0Nitemparent qnr integernominal0=no, 1=yes
ppbhsktt1g1/2Skills and Talents item 1, striking skill: sport (parent behaviour qnr at 16), 1Y 0Nitemparent qnr integernominal0=no, 1=yes
ppbhsktt1h1/2Skills and Talents item 1, striking skill: dance/drama (parent behaviour qnr at 16), 1Y 0Nitemparent qnrintegernominal0=no, 1=yes
ppbhsktt1i1/2Skills and Talents item 1, striking skill: social (parent behaviour qnr at 16), 1Y 0Nitemparent qnr integernominal0=no, 1=yes
ppbhsktt1j1/2Skills and Talents item 1, striking skill: writing (parent behaviour qnr at 16), 1Y 0Nitemparent qnr integernominal0=no, 1=yes
ppbhsktt1k1/2Skills and Talents item 1, striking skill: tech/computing (parent behaviour qnr at 16), 1Y 0Nitem parent qnrintegernominal0=no, 1=yes
ppbhsktt1l1/2Skills and Talents item 1, striking skill: mechanical (parent behaviour qnr at 16), 1Y 0Nitemparent qnrintegernominal0=no, 1=yes
ppbhsktt2a1/2Skills and Talents item 2, special ability (parent behaviour qnr at 16), 1Y 0Nitemparent qnrinteger nominal0=no, 1=yes
ppbhsktt2b1/2Skills and Talents item 2, special ability: maths (parent behaviour qnr at 16), 1Y 0Nitemparent qnr integernominal0=no, 1=yes
ppbhsktt2c1/2Skills and Talents item 2, special ability: music (parent behaviour qnr at 16), 1Y 0Nitemparent qnr integernominal0=no, 1=yes
ppbhsktt2d1/2Skills and Talents item 2, special ability: art (parent behaviour qnr at 16), 1Y 0Nitemparent qnr integernominal0=no, 1=yes
ppbhsktt2e1/2Skills and Talents item 2, special ability: memory (parent behaviour qnr at 16), 1Y 0Nitemparent qnr integernominal0=no, 1=yes
ppbhsktt2f1/2Skills and Talents item 2, special ability: science (parent behaviour qnr at 16), 1Y 0Nitemparent qnr integernominal0=no, 1=yes
ppbhsktt2g1/2Skills and Talents item 2, special ability: sport (parent behaviour qnr at 16), 1Y 0Nitemparent qnr integernominal0=no, 1=yes
ppbhsktt2h1/2Skills and Talents item 2, special ability: dance/drama (parent behaviour qnr at 16), 1Y 0Nitemparent qnrintegernominal0=no, 1=yes
ppbhsktt2i1/2Skills and Talents item 2, special ability: social (parent behaviour qnr at 16), 1Y 0Nitemparent qnr integernominal0=no, 1=yes
ppbhsktt2j1/2Skills and Talents item 2, special ability: writing (parent behaviour qnr at 16), 1Y 0Nitemparent qnr integernominal0=no, 1=yes
ppbhsktt2k1/2Skills and Talents item 2, special ability: tech/computing (parent behaviour qnr at 16), 1Y 0Nitem parent qnrintegernominal0=no, 1=yes
ppbhsktt2l1/2Skills and Talents item 2, special ability: mechanical (parent behaviour qnr at 16), 1Y 0Nitemparent qnrintegernominal0=no, 1=yes
ppconsentParent web consent at 16, 1Y 0Nitem parent webintegernominal0=no, 1=yes
ppfahqualFather highest qualification level (parent web SES at 16), 1=lowest to 8=highestitemparent webinteger ordinal1 to 8
ppfasocFather SOC level (parent web SES at 16), 1=highest to 9=lowestitemparent webintegerordinal 1 to 9
pphhincHousehold income level (parent web SES at 16), 1=lowest to 11=highestitemparent webinteger ordinal1=Under £5,000, 2=£5,000 to £9,999, 3=£10,000 to £14,999, 4=£15,000 to £19,999, 5=£20,000 to £24,999, 6=£25,000 to £29,999, 7=£30,000 to £39,999, 8=£40,000 to £49,999, 9=£50,000 to £74,999, 10=£75,000 to £100,000, 11=Over £100,000
ppl2ageAge of twin on return of LEAP-2 study parent booklet at 16derivedadmindecimalquantitative approx. 15.5 to 18.5 years
ppl2anx011/2Anxiety item 1, afraid of small spaces (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integerordinal0=not true, 1=quite true, 2=very true
ppl2anx021/2Anxiety item 2, long time to warm to strangers (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitem parent leap2integerordinal0=not true, 1=quite true, 2=very true
ppl2anx031/2Anxiety item 3, afraid in social situations (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integerordinal0=not true, 1=quite true, 2=very true
ppl2anx041/2Anxiety item 4, check things are done right (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integerordinal0=not true, 1=quite true, 2=very true
ppl2anx051/2Anxiety item 5, asks for reassurance (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2 integerordinal0=not true, 1=quite true, 2=very true
ppl2anx061/2Anxiety item 6, does things over and over (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integerordinal0=not true, 1=quite true, 2=very true
ppl2anx071/2Anxiety item 7, shy and timid (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2 integerordinal0=not true, 1=quite true, 2=very true
ppl2anx081/2Anxiety item 8, afraid of medical procedures (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitem parent leap2integerordinal0=not true, 1=quite true, 2=very true
ppl2anx091/2Anxiety item 9, twitches or mannerisms (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integerordinal0=not true, 1=quite true, 2=very true
ppl2anx101/2Anxiety item 10, does not enjoy self (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2 integerordinal0=not true, 1=quite true, 2=very true
ppl2anx111/2Anxiety item 11, critical of self (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2 integerordinal0=not true, 1=quite true, 2=very true
ppl2anx121/2Anxiety item 12, complains or whines (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2 integerordinal0=not true, 1=quite true, 2=very true
ppl2anx131/2Anxiety item 13, low self confidence (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2 integerordinal0=not true, 1=quite true, 2=very true
ppl2anx141/2Anxiety item 14, fussy or over particular (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integerordinal0=not true, 1=quite true, 2=very true
ppl2anx151/2Anxiety item 15, blames self (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2 integerordinal0=not true, 1=quite true, 2=very true
ppl2anx161/2Anxiety item 16, upset when parent leaves (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integerordinal0=not true, 1=quite true, 2=very true
ppl2anx171/2Anxiety item 17, seems worked up (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2 integerordinal0=not true, 1=quite true, 2=very true
ppl2anx181/2Anxiety item 18, afraid of animals (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2 integerordinal0=not true, 1=quite true, 2=very true
ppl2anx191/2Anxiety item 19, bad things will happen (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integerordinal0=not true, 1=quite true, 2=very true
ppl2anxfeart1/2ARBQ Anxiety fear subscale (parent LEAP-2 qnr at 16), 0-6derivedparent qnrdecimalscale value0 to 6
ppl2anxnafft1/2ARBQ Anxiety negative affect subscale (parent LEAP-2 qnr at 16), 0-8derivedparent qnrdecimalscale value0 to 8
ppl2anxncogt1/2ARBQ Anxiety negative cognition subscale (parent LEAP-2 qnr at 16), 0-10derivedparent qnrdecimalscale value0 to 10
ppl2anxocbt1/2ARBQ Anxiety OCB (obsessive compulsive behaviour) subscale (parent LEAP-2 qnr at 16), 0-6derivedparent qnrdecimalscale value0 to 6
ppl2anxshyt1/2ARBQ Anxiety shyness (social anxiety) subscale (parent LEAP-2 qnr at 16), 0-6derivedparent qnrdecimalscale value0 to 6
ppl2anxt1/2ARBQ Anxiety total scale (parent LEAP-2 qnr at 16), 0-38derivedparent leap2decimalscale value0 to 38
ppl2dataParent LEAP-2 booklet data present at 16, 1Y 0N itemparent leap2integernominal0=no, 1=yes
ppl2lfev01nLife Events item 1, loss of parent job, negative rating (parent LEAP-2 qnr at 16), see value labelsitemparent leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppl2lfev02nLife Events item 2, parent separation, negative rating (parent LEAP-2 qnr at 16), see value labelsitemparent leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppl2lfev03n1/2Life Events item 3, drugs, negative rating (parent LEAP-2 qnr at 16), see value labelsitemparent leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppl2lfev04n1/2Life Events item 4, death of friend, negative rating (parent LEAP-2 qnr at 16), see value labelsitemparent leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppl2lfev05n1/2Life Events item 5, hospitalised, negative rating (parent LEAP-2 qnr at 16), see value labelsitemparent leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppl2lfev07n1/2Life Events item 7, breaking up, negative rating (parent LEAP-2 qnr at 16), see value labelsitemparent leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppl2lfev08nLife Events item 8, sibling hospitalised, negative rating (parent LEAP-2 qnr at 16), see value labelsitemparent leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppl2lfev10n1/2Life Events item 10, failing exam, negative rating (parent LEAP-2 qnr at 16), see value labelsitemparent leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppl2lfev12nLife Events item 12, parent hospitalised, negative rating (parent LEAP-2 qnr at 16), see value labelsitemparent leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppl2lfev14nLife Events item 14, parent income decreased, negative rating (parent LEAP-2 qnr at 16), see value labelsitemparent leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppl2lfev16n1/2Life Events item 16, achievement, negative rating (parent LEAP-2 qnr at 16), see value labelsitemparent leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppl2lfev16p1/2Life Events item 16, achievement, positive rating (parent LEAP-2 qnr at 16), see value labelsitemparent leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppl2lfev17nLife Events item 17, parent arguments decreased, positive rating (parent LEAP-2 qnr at 16), see value labelsitemparent leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppl2lfev17pLife Events item 17, parent arguments decreased, negative rating (parent LEAP-2 qnr at 16), see value labelsitemparent leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppl2lfev19n1/2Life Events item 19, started dating, negative rating (parent LEAP-2 qnr at 16), see value labelsitemparent leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppl2lfev19p1/2Life Events item 19, started dating, positive rating (parent LEAP-2 qnr at 16), see value labelsitemparent leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppl2lfev20n1/2Life Events item 20, new school, negative rating (parent LEAP-2 qnr at 16), see value labelsitemparent leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppl2lfev20p1/2Life Events item 20, new school, positive rating (parent LEAP-2 qnr at 16), see value labelsitemparent leap2integerordinal0=did not occur, 1=occurred but with no effect, 2=moderate effect, 3=major effect
ppl2lfevnat1/2Life events: count of negative events that affected twin (parent LEAP-2 qnr at 16), see value labelsderivedparent leap2integerordinal0, 1, 2, 3, 4, 5 or more
ppl2lfevnnt1/2Life events: count of negative events that occurred with no effect on twin (parent LEAP-2 qnr at 16), see value labelsderivedparent leap2integerordinal0, 1, 2, 3 or more
ppl2lfevpat1/2Life events: count of positive events that affected twin (parent LEAP-2 qnr at 16), see value labelsderivedparent leap2integerordinal0, 1, 2, 3, 4 or more
ppl2lfevpnt1/2Life events: count of positive events that occurred with no effect on twin (parent LEAP-2 qnr at 16), see value labelsderivedparent leap2integerordinal0, 1, 2, 3 or more
ppl2LLCage Age of twin when parent 16 year LEAP-2 booklet returned (for use in LLC TRE), months derivedadminintegerquantitativeapprox. 187 to 222 (months)
ppl2LLCdate Date when parent 16 year LEAP-2 booklet returned (for use in LLC TRE), yyyy-mm string derivedadminstringdate valueapprox. '2012-06' to '2012-11'
ppl2mfq011/2MFQ item 1, did not enjoy anything (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2 integerordinal0=not true, 1=quite true, 2=very true
ppl2mfq021/2MFQ item 2, felt unreasonably tired (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2 integerordinal0=not true, 1=quite true, 2=very true
ppl2mfq031/2MFQ item 3, felt no good (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integer ordinal0=not true, 1=quite true, 2=very true
ppl2mfq041/2MFQ item 4, cried a lot (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integer ordinal0=not true, 1=quite true, 2=very true
ppl2mfq051/2MFQ item 5, found it hard to think (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2 integerordinal0=not true, 1=quite true, 2=very true
ppl2mfq061/2MFQ item 6, hated self (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integer ordinal0=not true, 1=quite true, 2=very true
ppl2mfq071/2MFQ item 7, felt a bad person (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2 integerordinal0=not true, 1=quite true, 2=very true
ppl2mfq081/2MFQ item 8, felt lonely (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integer ordinal0=not true, 1=quite true, 2=very true
ppl2mfq091/2MFQ item 9, thought nobody loved (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2 integerordinal0=not true, 1=quite true, 2=very true
ppl2mfq101/2MFQ item 10, never as good as others (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2 integerordinal0=not true, 1=quite true, 2=very true
ppl2mfq111/2MFQ item 11, did everything wrong (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2 integerordinal0=not true, 1=quite true, 2=very true
ppl2mfqt1/2MFQ total scale (parent LEAP-2 qnr at 16), 0-22 derivedparent leap2decimalscale value0 to 22
ppl2papa11/2Paranoid Parenting item 1, others might harm your child (parent LEAP-2 qnr at 16), 0=not at all .. 3=to great extent itemparent leap2integerordinal0=not at all, 1=a little, 2=moderately, 3=to a great extent
ppl2papa21/2Paranoid Parenting item 2, dangerous world for child (parent LEAP-2 qnr at 16), 0=not at all .. 3=to great extent itemparent leap2integerordinal0=not at all, 1=a little, 2=moderately, 3=to a great extent
ppl2papa31/2Paranoid Parenting item 3, worried about abduction (parent LEAP-2 qnr at 16), 0=not at all .. 3=to great extentitem parent leap2integerordinal0=not at all, 1=a little, 2=moderately, 3=to a great extent
ppl2papa41/2Paranoid Parenting item 4, age child allowed out alone (parent LEAP-2 qnr at 16), 1=less than 5 .. 7=15 or moreitem parent leap2integerordinal1=less than 5, 2=5-6, 3=7-8, 4=9-10, 5=11-12, 6=13-14, 7=15 or more
ppl2relbipaRelatives with Bipolar (parent LEAP-2 qnr at 16), 1Y 0N 2DKitemparent leap2integernominal 0=no, 1=yes, 2=DK
ppl2relbipeRelatives with Bipolar, parent (parent LEAP-2 qnr at 16), 1Y 0Nitemparent leap2integernominal 0=no, 1=yes
ppl2relbipgRelatives with Bipolar, grandparent (parent LEAP-2 qnr at 16), 1Y 0Nitemparent leap2integer nominal0=no, 1=yes
ppl2relbiphRelatives with Bipolar, aunt/uncle (parent LEAP-2 qnr at 16), 1Y 0Nitemparent leap2integer nominal0=no, 1=yes
ppl2relbipiRelatives with Bipolar, cousin (parent LEAP-2 qnr at 16), 1Y 0Nitemparent leap2integernominal 0=no, 1=yes
ppl2relbipjRelatives with Bipolar, other (parent LEAP-2 qnr at 16), 1Y 0Nitemparent leap2integernominal 0=no, 1=yes
ppl2relschaRelatives with Schizophrenia (parent LEAP-2 qnr at 16), 1Y 0N 2DKitemparent leap2integer nominal0=no, 1=yes, 2=DK
ppl2relschgRelatives with Schizophrenia, grandparent (parent LEAP-2 qnr at 16), 1Y 0Nitemparent leap2integer nominal0=no, 1=yes
ppl2relschhRelatives with Schizophrenia, aunt/uncle (parent LEAP-2 qnr at 16), 1Y 0Nitemparent leap2integer nominal0=no, 1=yes
ppl2relschiRelatives with Schizophrenia, cousin (parent LEAP-2 qnr at 16), 1Y 0Nitemparent leap2integer nominal0=no, 1=yes
ppl2relschjRelatives with Schizophrenia, other (parent LEAP-2 qnr at 16), 1Y 0Nitemparent leap2integer nominal0=no, 1=yes
ppl2sans011/2SANS item 1, fails to smile (parent LEAP-2 qnr at 16), 0=not at all .. 3=definitely trueitemparent leap2 integerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppl2sans021/2SANS item 2, seems emotionally flat (parent LEAP-2 qnr at 16), 0=not at all .. 3=definitely trueitemparent leap2integerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppl2sans031/2SANS item 3, gives brief answers (parent LEAP-2 qnr at 16), 0=not at all .. 3=definitely trueitemparent leap2integerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppl2sans041/2SANS item 4, does not have much to say (parent LEAP-2 qnr at 16), 0=not at all .. 3=definitely trueitem parent leap2integerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppl2sans051/2SANS item 5, sits around doing nothing (parent LEAP-2 qnr at 16), 0=not at all .. 3=definitely trueitem parent leap2integerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppl2sans061/2SANS item 6, lack of energy (parent LEAP-2 qnr at 16), 0=not at all .. 3=definitely trueitemparent leap2 integerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppl2sans071/2SANS item 7, few interests (parent LEAP-2 qnr at 16), 0=not at all .. 3=definitely trueitemparent leap2 integerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppl2sans081/2SANS item 8, few friends (parent LEAP-2 qnr at 16), 0=not at all .. 3=definitely trueitemparent leap2 integerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppl2sans091/2SANS item 9, does not pay attention (parent LEAP-2 qnr at 16), 0=not at all .. 3=definitely trueitemparent leap2integerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppl2sans101/2SANS item 10, inattentive (parent LEAP-2 qnr at 16), 0=not at all .. 3=definitely trueitemparent leap2 integerordinal0=not at all true, 1=somewhat true, 2=mainly true, 3=definitely true
ppl2sansafft1/2SANS Affective Flattening scale (parent LEAP-2 qnr at 16), 0-6derivedparent leap2decimal scale value0 to 6
ppl2sansalot1/2SANS Alogia scale (parent LEAP-2 qnr at 16), 0-6 derivedparent leap2decimalscale value0 to 6
ppl2sansanat1/2SANS Anhedonia-Associality scale (parent LEAP-2 qnr at 16), 0-6derivedparent leap2decimal scale value0 to 6
ppl2sansattt1/2SANS Attention scale (parent LEAP-2 qnr at 16), 0-6derivedparent leap2decimalscale value 0 to 6
ppl2sansavat1/2SANS Avolition-Apathy scale (parent LEAP-2 qnr at 16), 0-6derivedparent leap2decimal scale value0 to 6
ppl2sanst1/2SANS total scale (parent LEAP-2 qnr at 16), 0-30 derivedparent leap2decimalscale value0 to 30
ppl2sdqbeht1/2SDQ Behaviour Problems total scale (parent LEAP-2 qnr at 16), 0-24derivedparent leap2decimalscale value0 to 24
ppl2sdqcon11/2SDQ Conduct item 1, hot temper (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integerordinal0=not true, 1=quite true, 2=very true
ppl2sdqcon21/2SDQ Conduct item 2, follows instructions (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integerordinal0=not true, 1=quite true, 2=very true
ppl2sdqcon2r1/2Reversed version of SDQ Conduct item 2 (parent LEAP-2 qnr at 16)itemparent leap2integerordinal0=very true, 1=quite true, 2=not true
ppl2sdqcon31/2SDQ Conduct item 3, fights or bullies friends (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integerordinal0=not true, 1=quite true, 2=very true
ppl2sdqcon41/2SDQ Conduct item 4, often lies or cheats (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integerordinal0=not true, 1=quite true, 2=very true
ppl2sdqcon51/2SDQ Conduct item 5, steals (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integerordinal0=not true, 1=quite true, 2=very true
ppl2sdqcont1/2SDQ Conduct scale (parent LEAP-2 qnr at 16), 0-10derivedparent leap2decimalscale value0 to 10
ppl2sdqhyp11/2SDQ Hyperactivity item 1, restless or overactive (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integerordinal0=not true, 1=quite true, 2=very true
ppl2sdqhyp21/2SDQ Hyperactivity item 2, constantly fidgeting (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integerordinal0=not true, 1=quite true, 2=very true
ppl2sdqhyp31/2SDQ Hyperactivity item 3, easily distracted (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integerordinal0=not true, 1=quite true, 2=very true
ppl2sdqhyp41/2SDQ Hyperactivity item 4, thinks things out (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integerordinal0=not true, 1=quite true, 2=very true
ppl2sdqhyp4r1/2Reversed version of SDQ Hyperactivity item 4 (parent LEAP-2 qnr at 16)itemparent leap2integerordinal0=very true, 1=quite true, 2=not true
ppl2sdqhyp51/2SDQ Hyperactivity item 5, sees tasks through (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integerordinal0=not true, 1=quite true, 2=very true
ppl2sdqhyp5r1/2Reversed version of SDQ Hyperactivity item 5 (parent LEAP-2 qnr at 16)itemparent leap2integerordinal0=very true, 1=quite true, 2=not true
ppl2sdqhypt1/2SDQ Hyperactivity scale (parent LEAP-2 qnr at 16), 0-10derivedparent leap2decimalscale value0 to 10
ppl2sdqper21/2SDQ Peer item 2, at least one good friend (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integerordinal0=not true, 1=quite true, 2=very true
ppl2sdqper2r1/2Reversed version of SDQ Peer item 2 (parent LEAP-2 qnr at 16)itemparent leap2integerordinal0=very true, 1=quite true, 2=not true
ppl2sdqper31/2SDQ Peer item 3, generally liked (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integerordinal0=not true, 1=quite true, 2=very true
ppl2sdqper3r1/2Reversed version of SDQ Peer item 3 (parent LEAP-2 qnr at 16)itemparent leap2integerordinal0=very true, 1=quite true, 2=not true
ppl2sdqpro11/2SDQ Prosocial item 1, considerate of feelings (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integerordinal0=not true, 1=quite true, 2=very true
ppl2sdqpro21/2SDQ Prosocial item 2, shares readily (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integerordinal0=not true, 1=quite true, 2=very true
ppl2sdqpro31/2SDQ Prosocial item 3, helpful if someone hurt (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integerordinal0=not true, 1=quite true, 2=very true
ppl2sdqpro41/2SDQ Prosocial item 4, kind to younger people (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integerordinal0=not true, 1=quite true, 2=very true
ppl2sdqpro51/2SDQ Prosocial item 5, volunteers to help (parent LEAP-2 qnr at 16), 0=not 1=quite 2=very trueitemparent leap2integerordinal0=not true, 1=quite true, 2=very true
ppl2sdqprot1/2SDQ Prosocial scale (parent LEAP-2 qnr at 16), 0-10derivedparent leap2decimalscale value0 to 10
ppmohqualMother highest qualification level (parent web SES at 16), 1=lowest to 8=highestitemparent webinteger ordinal1 to 8
ppmosocMother SOC level (parent web SES at 16), 1=highest to 9=lowestitemparent webintegerordinal 1 to 9
ppwebdataParent web data present at 16, 1Y 0Nderived parent webintegernominal0=no, 1=yes
psesSES composite at 16, derived from household income, mother and father qualifications and SOC (standardised)derived parent webdecimalscale valueapprox. -2 to +2 (standardized)