| dataset variable name | dataset variable label | source of
data | item or derived variable? | data type |
variable type | coding or approximate range of values |
|---|
| gacback1/2 | Back pain (7 year parent), see value labels |
parent | item | integer | ordinal | 0=no, 1=sometimes, 2=often |
| gacches1/2 | Chest pain (7 year parent), see value labels |
parent | item | integer | ordinal | 0=no, 1=sometimes, 2=often |
| gacdizz1/2 | Dizziness (7 year parent), see value labels |
parent | item | integer | ordinal | 0=no, 1=sometimes, 2=often |
| gaclimb1/2 | Limb pain (7 year parent), see value labels |
parent | item | integer | ordinal | 0=no, 1=sometimes, 2=often |
| gacothe1/2 | Other unspecified aches/pains (7 year parent), see value labels |
parent | item | integer | ordinal | 0=no, 1=sometimes, 2=often |
| gactire1/2 | Tiredness (7 year parent), see value labels |
parent | item | integer | ordinal | 0=no, 1=sometimes, 2=often |
| gadults | Household type: adults present (7 year parent),
see value labels | parent | derived | integer | nominal
| 1=biological mother and father, 2=mother or father with guardian or other,
3=single parent, 4=mother with partner details missing, 9=unknown or other |
| gbmi1/2 | Twin BMI (7 year parent),
kilograms per square metre | parent | derived | decimal | quantitative |
approx. 10 to 25 (kg per square m) |
| gbpamus | Parental feelings: Amused, elder twin frequency (7 year
parent), see value labels | parent | item | integer |
ordinal | 0=never, 1=rarely, 2=sometimes, 3=often |
| gbpamus1/2 | Parental feelings: Amused by, twin-specific (7 year
parent), standardised | parent | derived | decimal |
scale value | approx. -3 to +3 (standardised) |
| gbpamusd | Parental feelings: Amused, younger twin difference (7
year parent), see value labels | parent | item | integer |
ordinal | 1=less, 2=same, 3=more |
| gbpangr | Parental feelings: Angry, elder twin frequency (7 year
parent), see value labels | parent | item | integer |
ordinal | 0=never, 1=rarely, 2=sometimes, 3=often |
| gbpangr1/2 | Parental feelings: Angry with, twin-specific (7 year
parent), standardised | parent | derived | decimal |
scale value | approx. -3 to +3 (standardised) |
| gbpangrd | Parental feelings: Angry, younger twin difference (7
year parent), see value labels | parent | item | integer |
ordinal | 1=less, 2=same, 3=more |
| gbpclos | Parental feelings: Close, elder twin frequency (7 year
parent), see value labels | parent | item | integer |
ordinal | 0=never, 1=rarely, 2=sometimes, 3=often |
| gbpclos1/2 | Parental feelings: Close to, twin-specific (7 year
parent), standardised | parent | derived | decimal |
scale value | approx. -3 to +3 (standardised) |
| gbpclosd | Parental feelings: Close, younger twin difference (7
year parent), see value labels | parent | item | integer |
ordinal | 1=less, 2=same, 3=more |
| gbpfrus | Parental feelings: Frustrated, elder twin frequency (7
year parent), see value labels | parent | item | integer |
ordinal | 0=never, 1=rarely, 2=sometimes, 3=often |
| gbpfrus1/2 | Parental feelings: Frustrated with, twin-specific (7
year parent), standardised | parent | derived | decimal |
scale value | approx. -3 to +3 (standardised) |
| gbpfrusd | Parental feelings: Frustrated, younger twin difference
(7 year parent), see value labels | parent | item |
integer | ordinal | 1=less, 2=same, 3=more |
| gbphapp | Parental feelings: Happy, elder twin frequency (7 year
parent), see value labels | parent | item | integer |
ordinal | 0=never, 1=rarely, 2=sometimes, 3=often |
| gbphapp1/2 | Parental feelings: Happy with, twin-specific (7 year
parent), standardised | parent | derived | decimal |
scale value | approx. -3 to +3 (standardised) |
| gbphappd | Parental feelings: Happy, younger twin difference (7
year parent), see value labels | parent | item | integer |
ordinal | 1=less, 2=same, 3=more |
| gbpimpa | Parental feelings: Impatient, elder twin frequency (7
year parent), see value labels | parent | item | integer |
ordinal | 0=never, 1=rarely, 2=sometimes, 3=often |
| gbpimpa1/2 | Parental feelings: Impatient with, twin-specific (7
year parent), standardised | parent | derived | decimal |
scale value | approx. -3 to +3 (standardised) |
| gbpimpad | Parental feelings: Impatient, younger twin difference
(7 year parent), see value labels | parent | item |
integer | ordinal | 1=less, 2=same, 3=more |
| gbpleav | Parental feelings: Leave alone, elder twin frequency (7
year parent), see value labels | parent | item | integer |
ordinal | 0=never, 1=rarely, 2=sometimes, 3=often |
| gbpleav1/2 | Parental feelings: Leave you alone, twin-specific (7
year parent), standardised | parent | derived | decimal |
scale value | approx. -3 to +3 (standardised) |
| gbpleavd | Parental feelings: Leave alone, younger twin difference
(7 year parent), see value labels | parent | item |
integer | ordinal | 1=less, 2=same, 3=more |
| gcdata1/2 | 7 year twin phone interview data present, 1Y 0N |
child | item | integer | nominal | 0=no, 1=yes |
| gcemo11/2 | Feelings: Enjoy school (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=never, 1=sometimes, 2=often |
| gcemo21/2 | Feelings: Have fun at home (7 year twin phone), see
value labels | child | item | integer | ordinal |
0=never, 1=sometimes, 2=often |
| gcemo31/2 | Feelings: Generally feel happy (7 year twin phone),
see value labels | child | item | integer | ordinal |
0=never, 1=sometimes, 2=often |
| gcemo41/2 | Feelings: worry (7 year twin phone), see value labels |
child | item | integer | ordinal | 0=never,
1=sometimes, 2=often |
| gcemo51/2 | Feelings: feel scared (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=never, 1=sometimes, 2=often |
| gcemo61/2 | Feelings: feel sad (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=never, 1=sometimes, 2=often |
| gcemo71/2 | Feelings: feel like crying (7 year twin phone), see
value labels | child | item | integer | ordinal |
0=never, 1=sometimes, 2=often |
| gcfrnd11/2 | Friends: Play with (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=never, 1=sometimes, 2=often |
| gcfrnd21/2 | Friends: Share with (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=never, 1=sometimes, 2=often |
| gcfrnd31/2 | Friends: Tell each other secrets (7 year twin phone),
see value labels | child | item | integer | ordinal |
0=never, 1=sometimes, 2=often |
| gcfrnd41/2 | Friends: Fall out and make friends (7 year twin
phone), 1Y 0N | child | item | integer |
nominal | 0=no, 1=yes |
| gcg1/2 | Child G composite (7 year teacher), standardised |
child | derived | decimal | scale value | approx. -3
to +3 (standardised) |
| gcg11/2 | Conceptual grouping item 1 overall score (7 year twin phone),
1=correct 0=incorrect | child | item | integer | ordinal |
0=incorrect, 1=correct |
| gcg21/2 | Conceptual grouping item 2 overall score (7 year twin phone),
1=correct 0=incorrect | child | item | integer | ordinal |
0=incorrect, 1=correct |
| gcg31/2 | Conceptual grouping item 3 overall score (7 year twin phone),
1=correct 0=incorrect | child | item | integer | ordinal |
0=incorrect, 1=correct |
| gcg41/2 | Conceptual grouping item 4 score (7 year twin phone),
value labels | child | item | integer | ordinal |
0-2 (score) |
| gcg51/2 | Conceptual grouping item 5 score (7 year twin phone), see
value labels | child | item | integer | ordinal |
0-2 (score) |
| gcg61/2 | Conceptual grouping item 6 score (7 year twin phone), 1=correct 0=incorrect |
child | item | integer | ordinal |
0=incorrect, 1=correct |
| gcg71/2 | Conceptual grouping item 7 score (7 year twin phone), 1=correct 0=incorrect |
child | item | integer | ordinal |
0=incorrect, 1=correct |
| gcg81/2 | Conceptual grouping item 8 score (7 year twin phone), 1=correct 0=incorrect |
child | item | integer | ordinal |
0=incorrect, 1=correct |
| gcg91/2 | Conceptual grouping item 9 score (7 year twin phone), see
value labels | child | item | integer | ordinal |
0-2 (score) |
| gciage1/2 | Age of twin when telephone interview done at 7 |
child | derived | decimal | quantitative | approx.
6.5 to 8 (years) |
| gciLLCage1 | Age of twin when 7 year child phone interview done (for use in LLC TRE), months |
child | derived | integer | quantitative |
approx. 80 to 94 (months) |
| gciLLCdate1 | Date when 7 year child phone interview done (for use in LLC TRE), yyyy-mm string |
child | derived | string | date value |
approx. '2001-02' to '2003-08' |
| gcl1/2 | Child Verbal/Language composite (7 year teacher),
standardised | child | derived | decimal | scale
value | approx. -3 to +3 (standardised) |
| gcn1/2 | Child Non-verbal composite (7 year teacher), standardised |
child | derived | decimal | scale value | approx. -3
to +3 (standardised) |
| gcohort | Cohort for 7yr study, see value labels | admin |
item | integer | ordinal | 1=school cohort 1: twins born
Jan-94 to Aug-94, 2=school cohort 2: twins born Sep-94 to Aug-95, 3=school
cohort 3, 1995: twins born Sep-95 to Dec-96, 4=school cohort 3, 1996: twins
born Jan-96 to Aug-96, 5=school cohort 4: twins born Sep-96 to Dec-96 |
| gcongrt1/2 | Conceptual grouping total score (7 year twin phone),
0-12 | child | derived | integer | scale value |
0 to 12 |
| gdhospl | Dad longest stay in hospital (7 year parent), see value
labels | parent | item | integer | ordinal |
1=1 night, 2=2 to 4 nights, 3=5 to 6 nights, 4=7 nights, 5=8 to 10 nights,
6=11 to 14 nights, 7=over 14 nights |
| gdiexpl | Discipline: Explain/reason, elder twin frequency (7 year
parent), see value labels | parent | item | integer |
ordinal | 0=never, 1=rarely, 2=sometimes, 3=often |
| gdiexpl1/2 | Discipline: Explain or reason with, twin-specific (7
year parent), standardised | parent | derived | decimal |
scale value | approx. -3 to +3 (standardised) |
| gdiexpld | Discipline: Explain/reason, younger twin difference (7
year parent), see value labels | parent | item | integer |
ordinal | 1=less, 2=same, 3=more |
| gdiigno | Discipline: Ignore, elder twin frequency (7 year
parent), see value labels | parent | item | integer |
ordinal | 0=never, 1=rarely, 2=sometimes, 3=often |
| gdiigno1/2 | Discipline: Ignore, twin-specific (7 year parent),
standardised | parent | derived | decimal | scale
value | approx. -3 to +3 (standardised) |
| gdiignod | Discipline: Ignore, younger twin difference (7 year
parent), see value labels | parent | item | integer |
ordinal | 1=less, 2=same, 3=more |
| gdiprai | Discipline: Praise/reward, elder twin frequency (7 year
parent), see value labels | parent | item | integer |
ordinal | 0=never, 1=rarely, 2=sometimes, 3=often |
| gdiprai1/2 | Discipline: Praise or reward, twin-specific (7 year
parent), standardised | parent | derived | decimal |
scale value | approx. -3 to +3 (standardised) |
| gdipraid | Discipline: Praise/reward, younger twin difference (7
year parent), see value labels | parent | item | integer |
ordinal | 1=less, 2=same, 3=more |
| gdisend | Discipline: Send to room, elder twin frequency (7 year
parent), see value labels | parent | item | integer |
ordinal | 0=never, 1=rarely, 2=sometimes, 3=often |
| gdisend1/2 | Discipline: Send to room, twin-specific (7 year
parent), standardised | parent | derived | decimal |
scale value | approx. -3 to +3 (standardised) |
| gdisendd | Discipline: Send to room, younger twin difference (7
year parent), see value labels | parent | item | integer |
ordinal | 1=less, 2=same, 3=more |
| gdishou | Discipline: Shout/raise voice, elder twin frequency (7
year parent), see value labels | parent | item | integer |
ordinal | 0=never, 1=rarely, 2=sometimes, 3=often |
| gdishou1/2 | Discipline: Shout or raise voice at, twin-specific (7
year parent), standardised | parent | derived | decimal |
scale value | approx. -3 to +3 (standardised) |
| gdishoud | Discipline: Shout/raise voice, younger twin difference
(7 year parent), see value labels | parent | item |
integer | ordinal | 1=less, 2=same, 3=more |
| gdismak | Discipline: Smack/restrain, elder twin frequency (7 year
parent), see value labels | parent | item | integer |
ordinal | 0=never, 1=rarely, 2=sometimes, 3=often |
| gdismak1/2 | Discipline: Smack or restrain, twin-specific (7 year
parent), standardised | parent | derived | decimal |
scale value | approx. -3 to +3 (standardised) |
| gdismakd | Discipline: Smack/restrain, younger twin difference (7
year parent), see value labels | parent | item | integer |
ordinal | 1=less, 2=same, 3=more |
| gdisneg1/2 | Parent harsh/negative discipline composite (7 year parent),
standardised | parent | derived | decimal | scale
value | approx. -3 to +3 (standardised) |
| gdispos1/2 | Parent positive discipline composite (7 year parent),
standardised | parent | derived | decimal | scale
value | approx. -3 to +3 (standardised) |
| ges1to11/2 | One to one support in school (7 year parent), 1Y 0N |
parent | item | integer | nominal | 0=no, 1=yes |
| geshelp1/2 | Extra teaching help (7 year parent), 1Y 0N |
parent | item | integer | nominal | 0=no, 1=yes |
| gesiep1/2 | IEP or school program (7 year parent), 1Y 0N |
parent | item | integer | nominal | 0=no, 1=yes |
| gesoth1/2 | Other unspecified extra support in school (7 year parent), 1Y 0N |
parent | item | integer | nominal | 0=no, 1=yes |
| gespsyc1/2 | Psychologist or professional help (7 year parent), 1Y
0N | parent | item | integer | nominal | 0=no,
1=yes |
| gesspsc1/2 | Attending special school (7 year parent), 1Y
0N | parent | item | integer | nominal | 0=no,
1=yes |
| gfahqual | Father highest qualification level (7 year parent), see
value labels | parent | derived | integer | ordinal |
1=none, 2=1 to 4 GCSEs, 3=5 or more GCSEs, 4=1 A-level, 5=2 or more
A-levels, 6=first degree, 7=higher degree |
| gfajob | Father works (7 year parent), see value labels |
parent | derived | integer | nominal | 0=unemployed
or student, 1=employed, 2=full time parent |
| gfasoc | Father SOC group (7 year parent), 1-9 | parent |
derived | integer | ordinal | 1=managers, 2=professional,
3=technical, 4=administrative, 5=skilled trade, 6=personal service, 7=sales
and customer service, 8=unskilled operatives, 9=elementary occupations |
| gfinancedif | Change in financial circumstances (7 year parent), see value labels |
parent | item | integer | nominal | 0=no change,
1=changed better, 2=changed same, 3=changed worse |
| gfits1/2 | Fits or blank spells (7 year parent), see value labels |
parent | item | integer | nominal | 0=no, 1=yes
when unwell, 2=yes when otherwise well, 3=yes but category not stated |
| gheardif1/2 | Hearing difficulties (7 year parent), see value
labels | parent | item | integer | nominal |
0=no, 1=yes permanent loss one ear, 2=yes permanent loss both ears, 3=yes
ear infections/glue ear/grommets, 4=yes profoundly deaf, 5=yes temporary now OK,
6=yes other or unspecified |
| ghospad1/2 | Admitted to hospital in last 3yrs (7 year parent),
see value labels | parent | item | integer |
ordinal | 0=no, 1=yes 1-3 times, 2=yes 4-6 times, 3=yes 7-9 times,
4=yes 10 or more times |
| ghospl1/2 | Twin longest stay in hospital (7 year parent), see
value labels | parent | item | integer | ordinal |
1=1 night, 2=2 to 4 nights, 3=5 to 6 nights, 4=7 nights, 5=8 to 10 nights,
6=11 to 14 nights, 7=over 14 nights |
| ghtcm1/2 | Twin height in cm (7 year parent) | parent |
item | integer | quantitative |
approx. 95 to 150 (centimetres) |
| ghticsd1/2 | Repeated tics or twitches: description (7 year parent), see value labels | parent |
item | integer | nominal |
1=eye twitch, 2=other face or head twitch, 3=limb or body twitch |
| gilasth1/2 | Diagnosed illness: Asthma (7 year parent), 1Y 0N |
parent | item | integer | nominal | 0=no, 1=yes |
| gildig1/2 | Diagnosed illness: Digestive or urinary (7 year parent), 1Y 0N |
parent | item | integer | nominal | 0=no, 1=yes |
| gildysp1/2 | Diagnosed illness: Dyspraxia (7 year parent), 1Y 0N |
parent | item | integer | nominal | 0=no, 1=yes |
| gilepil1/2 | Diagnosed illness: Epilepsy (7 year parent), 1Y 0N |
parent | item | integer | nominal | 0=no, 1=yes |
| gilhrt1/2 | Diagnosed illness: Heart or lung (7 year parent), 1Y 0N |
parent | item | integer | nominal | 0=no, 1=yes |
| gillaut1/2 | Diagnosed illness: Autism (7 year parent), 1Y 0N |
parent | item | integer | nominal | 0=no, 1=yes |
| gilmusc1/2 | Diagnosed illness: Muscular or skeletal (7 year parent), 1Y 0N |
parent | item | integer | nominal | 0=no, 1=yes |
| gillcp1/2 | Diagnosed illness: Cerebral palsy (7 year parent), 1Y
0N | parent | item | integer | nominal | 0=no,
1=yes |
| gillhyp1/2 | Diagnosed illness: Hyperactivity/ADHD (7 year
parent), 1Y 0N | parent | item | integer | nominal |
0=no, 1=yes |
| gilloth1/2 | Diagnosed illness: Other serious condition (7 year
parent), 1Y 0N | parent | item | integer | nominal |
0=no, 1=yes |
| gldaut1/2 | Learning difficulty: Autism (7 year parent), 1Y 0N |
parent | item | integer | nominal | 0=no, 1=yes |
| glddysl1/2 | Learning difficulty: Dyslexia or reading difficulties
(7 year parent), 1Y 0N | parent | item | integer |
nominal | 0=no, 1=yes |
| gldhyp1/2 | Learning difficulty: Diagnosed hyperactive/ADHD (7
year parent), 1Y 0N | parent | item | integer |
nominal | 0=no, 1=yes |
| gldmath1/2 | Learning difficulty: Maths difficulties (7 year
parent), 1Y 0N | parent | item | integer | nominal |
0=no, 1=yes |
| gldmot1/2 | Learning difficulty: Motor skills or coordination
difficulty (7 year parent), 1Y 0N | parent | item |
integer | nominal | 0=no, 1=yes |
| gldoth1/2 | Learning difficulty: Other general or unspecified learning difficulties (7
year parent), 1Y 0N | parent | item | integer |
nominal | 0=no, 1=yes |
| gldrest1/2 | Learning difficulty: Restless or difficulty
concentrating (7 year parent), 1Y 0N | parent | item |
integer | nominal | 0=no, 1=yes |
| gldspk1/2 | Learning difficulty: Speaking or language difficulty (7 year parent), 1Y 0N | parent | item |
integer | nominal | 0=no, 1=yes |
| gldwrit1/2 | Learning difficulty: Writing difficulties (7 year
parent), 1Y 0N | parent | item | integer | nominal |
0=no, 1=yes |
| glebirth | Life events: Birth of a sibling (7 year parent), 1Y 0N |
parent | item | integer | nominal | 0=no, 1=yes |
| glecount | Count of reported life events (7 year parent), 0-6 |
parent | derived | integer | ordinal | 0 to 6 |
| gledeadg | Life events: Death of a grandparent (7 year parent), 1Y
0N | parent | item | integer | nominal | 0=no,
1=yes |
| gledeadp | Life events: Death of a parent (7 year parent), 1Y 0N |
parent | item | integer | nominal | 0=no, 1=yes |
| gledeads | Life events: Death of a sibling (7 year parent), 1Y 0N |
parent | item | integer | nominal | 0=no, 1=yes |
| gledeapet | Life events: Death of pet (7 year
parent), 1Y 0N | parent | item | integer | nominal |
0=no, 1=yes |
| gledearel | Life events: Death of other relative (7 year
parent), 1Y 0N | parent | item | integer | nominal |
0=no, 1=yes |
| gledivor | Life events: Divorce of parents (7 year parent), 1Y 0N |
parent | item | integer | nominal | 0=no, 1=yes |
| glefinch | Life events: Financial changes (7 year parent), 1Y 0N |
parent | item | integer | nominal | 0=no, 1=yes |
| glehospp | Life events: Hospitalisation of parent (7 year parent),
1Y 0N | parent | item | integer | nominal |
0=no, 1=yes |
| glehospt | Life events: Hospitalisation of twin (7 year parent),
1Y 0N | parent | item | integer | nominal |
0=no, 1=yes |
| gleillfam | Life events: Serious family illness (7 year
parent), 1Y 0N | parent | item | integer | nominal |
0=no, 1=yes |
| glemoved | Life events: Moved home or school (7 year
parent), 1Y 0N | parent | item | integer | nominal |
0=no, 1=yes |
| glenewp | Life events: New parent figure (7 year parent), 1Y 0N |
parent | item | integer | nominal | 0=no, 1=yes |
| glenewper | Life events: other new person in home (7 year
parent), 1Y 0N | parent | item | integer | nominal |
0=no, 1=yes |
| glerelmov | Life events: Relative moved away (7 year
parent), 1Y 0N | parent | item | integer | nominal |
0=no, 1=yes |
| glesepfp | Life events: Long separation from parent (7 year
parent), 1Y 0N | parent | item | integer | nominal |
0=no, 1=yes |
| gletrauma | Life events: Traumatic or violent event (7 year
parent), 1Y 0N | parent | item | integer | nominal |
0=no, 1=yes |
| gmhospl | Mum longest stay in hospital (7 year parent), see value
labels | parent | item | integer | ordinal |
1=1 night, 2=2 to 4 nights, 3=5 to 6 nights, 4=7 nights, 5=8 to 10 nights,
6=11 to 14 nights, 7=over 14 nights |
| gmohqual | Mother highest qualification level (7 year parent), see
value labels | parent | derived | integer | ordinal |
1=none, 2=1 to 4 GCSEs, 3=5 or more GCSEs, 4=1 A-level, 5=2 or more
A-levels, 6=first degree, 7=higher degree |
| gmojob | Mother works (7 year parent), see value labels |
parent | derived | integer | nominal | 0=unemployed
or student, 1=employed, 2=full time parent |
| gmosoc | Mother SOC group (7 year parent), 1-9 | parent |
derived | integer | ordinal | 1=managers, 2=professional,
3=technical, 4=administrative, 5=skilled trade, 6=personal service, 7=sales
and customer service, 8=unskilled operatives, 9=elementary occupations |
| gnoise1/2 | Repeated involuntary noises: frequency (7 year parent), see value
labels | parent | item | integer | ordinal |
0=no, 1=yes sometimes, 2=yes often |
| gnoised1/2 | Repeated involuntary noises: description (7 year parent), see value
labels | parent | item | integer | nominal |
1=nose or throat noise, 2=grunting, 3=word-like noise, 4=other sounds |
| gnwr011/2 | Non word recognition item 1 score (7 year twin phone),
1right 0wrong | child | item | integer | ordinal |
0=wrong answer, 1=right answer |
| gnwr021/2 | Non word recognition item 2 score (7 year twin phone),
1right 0wrong | child | item | integer | ordinal |
0=wrong answer, 1=right answer |
| gnwr031/2 | Non word recognition item 3 score (7 year twin phone),
1right 0wrong | child | item | integer | ordinal |
0=wrong answer, 1=right answer |
| gnwr041/2 | Non word recognition item 4 score (7 year twin phone),
1right 0wrong | child | item | integer | ordinal |
0=wrong answer, 1=right answer |
| gnwr051/2 | Non word recognition item 5 score (7 year twin phone),
1right 0wrong | child | item | integer | ordinal |
0=wrong answer, 1=right answer |
| gnwr061/2 | Non word recognition item 6 score (7 year twin phone),
1right 0wrong | child | item | integer | ordinal |
0=wrong answer, 1=right answer |
| gnwr071/2 | Non word recognition item 7 score (7 year twin phone),
1right 0wrong | child | item | integer | ordinal |
0=wrong answer, 1=right answer |
| gnwr081/2 | Non word recognition item 8 score (7 year twin phone),
1right 0wrong | child | item | integer | ordinal |
0=wrong answer, 1=right answer |
| gnwr091/2 | Non word recognition item 9 score (7 year twin phone),
1right 0wrong | child | item | integer | ordinal |
0=wrong answer, 1=right answer |
| gnwr101/2 | Non word recognition item 10 score (7 year twin
phone), 1right 0wrong | child | item | integer |
ordinal | 0=wrong answer, 1=right answer |
| gnwr111/2 | Non word recognition item 11 score (7 year twin
phone), 1right 0wrong | child | item | integer |
ordinal | 0=wrong answer, 1=right answer |
| gnwr121/2 | Non word recognition item 12 score (7 year twin
phone), 1right 0wrong | child | item | integer |
ordinal | 0=wrong answer, 1=right answer |
| gnwrt1/2 | Non word recognition total score (7 year twin phone),
0-12 | child | derived | integer | scale value |
0 to 12 |
| gotherad | Other adults in household (7 year parent), see value labels |
parent | item | integer | nominal | 0=no, 1=yes: relative,
2=yes: domestic help, 3=yes: other or unspecified |
| gotherhl | Other adults how long in household (7 year parent), see
value labels | parent | item | integer | ordinal |
1=under 6 months, 2=6 months to 1 year, 2=1 to 2 years, 3=2 to 3 years, 4=3
to 4 years, 4=over 4 years |
| gpanx011/2 | Behaviour: Afraid of heights/dark (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpanx021/2 | Behaviour: Shy to strangers (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpanx031/2 | Behaviour: Afraid in social situations (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpanx041/2 | Behaviour: Checks things exactly right (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpanx051/2 | Behaviour: Asks for reassurance (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpanx061/2 | Behaviour: Does something over and over (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpanx071/2 | Behaviour: Shy/timid (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpanx081/2 | Behaviour: Afraid of medical procedures (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpanx091/2 | Repeated tics or twitches (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpanx101/2 | Behaviour: Doesnt enjoy him/herself (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpanx111/2 | Behaviour: Self-critical (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpanx121/2 | Behaviour: Complains (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpanx131/2 | Behaviour: Low self-confidence (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpanx141/2 | Behaviour: Fussy (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpanx151/2 | Behaviour: Tends to blame him/herself (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpanx161/2 | Behaviour: Upset when parent leaves (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpanx171/2 | Behaviour: On edge/tense (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpanx181/2 | Behaviour: Is afraid of animals/insects (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpanx191/2 | Behaviour: Anxious (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpanx201/2 | Behaviour: Strongly resists sleeping alone (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpanx211/2 | Behaviour: Fussy about clean hands (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpanxfeart1/2 | ARBQ fear total (7 year parent), 0-10 | parent | derived | decimal | scale |
0 to 10 |
| gpanxnafft1/2 | ARBQ negative affect total (7 year parent), 0-10 | parent | derived | decimal | scale |
0 to 10 |
| gpanxncogt1/2 | ARBQ negative cognition total (7 year parent),
0-12 | parent | derived | decimal | scale | 0
to 12 |
| gpanxocbt1/2 | ARBQ OCB total (7 year parent), 0-8 | parent | derived | decimal | scale | 0 to 8 |
| gpanxshyt1/2 | ARBQ shyness (social anxiety) total (7 year
parent), 0-8 | parent | derived | decimal | scale |
0 to 8 |
| gpanxt1/2 | ARBQ overall anxiety total (7 year parent), 0-52 | parent | derived | decimal | scale | 0 to
52 |
| gpaps031/2 | Behaviour: Concerned to do well (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpaps03r1/2 | Behaviour: Concerned to do well (7 year parent), reversed version, see value labels | parent | item | integer | ordinal | 0=certainly true, 1=somewhat true, 2=not true |
| gpaps051/2 | Behaviour: Emotions not genuine (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpaps081/2 | Behaviour: Brags (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpaps111/2 | Behaviour: Teases other people (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpaps121/2 | Behaviour: Guilty when does something wrong (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpaps12r1/2 | Behaviour: Guilty when does something wrong (7 year parent), reversed version, see value labels | parent | item | integer | ordinal | 0=certainly true, 1=somewhat true, 2=not true |
| gpaps141/2 | Behaviour: Can turn on the charm (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpaps151/2 | Behaviour: Angry when corrected (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpaps161/2 | Behaviour: Self more important than others (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpaps191/2 | Behaviour: Does not show feelings/emotions (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gparbklt | Parent opted to fill in booklet rather than doing phone
interview (cohorts 2/3), 1Y 0N | admin | item | integer |
nominal | 0=no, 1=yes |
| gppar1/2 | Parental feelings total composite (7 year parent),
standardised | parent | derived | decimal | scale
value | approx. -3 to +3 (standardised) |
| gpparneg1/2 | Being a parent negative feelings composite (7 year parent),
standardised | parent | derived | decimal | scale
value | approx. -3 to +3 (standardised) |
| gpparpos1/2 | Being a parent positive feelings composite (7 year parent),
standardised | parent | derived | decimal | scale
value | approx. -3 to +3 (standardised) |
| gpartemploystat | Partner working for employer status (7 year parent), see value labels |
parent | item | integer | nominal | 0=not working for employer,
1=employed as trainee or employee, 2=manager or supervisor of 4 or fewer workers,
3=manager or supervisor of 5-9 workers, 4=manager or supervisor of 10-19 workers,
5=manager or supervisor of 20+ workers |
| gparthqual | Partner highest level of qualification (7 year parent),
see value labels | parent | item | integer | ordinal |
1=no qualifications, 2=1 to 4 GCSEs, 3=5 or more GCSEs, 4=1 A-level, 5=2 or more
A-levels, 6=first degree, 7=higher degree |
| gparthl | Partner how long in family (7 year parent), see value
labels | parent | item | integer | ordinal |
1=under 6 months, 2=6 months to 1 year, 2=1 to 2 years, 3=2 to 3 years, 4=3
to 4 years, 4=over 4 years |
| gpartner | Living with partner/spouse (7 year parent), 1Y 0N |
parent | item | integer | nominal | 0=no, 1=yes |
| gpartrel | Partner relationship to twins (7 year parent), see
value labels | parent | item | integer | nominal |
1=birth mother, 2=natural father, 4=stepfather, 0=other |
| gpartselfemstat | Partner self employment status (7 year parent), see value labels |
parent | item | integer | nominal | 0=not self-employed,
1=self-employed without employees, 2=self-employed: 4 or fewer employees,
2=self-employed: 5-9 employees, 3=self-employed: 10-19 employees, 2=self-employed: 20+ employees
|
| gpartsoc | Partner SOC: ordinal employment category (7 year parent),
1-9 | parent | item | integer | ordinal |
1=managers, 2=professional, 3=technical, 4=administrative, 5=skilled trade,
6=personal service, 7=sales and customer service, 8=unskilled operatives,
9=elementary occupations |
| gpartunem | Partner how long unemployed (7 year parent), see value
labels | parent | item | integer | ordinal |
1=less than 3 months, 2=3 to 6 months, 3=7 to 11 months, 4=1 to 2 years,
5=over 2 years |
| gpartwork | Partner working (7 year parent), see value labels |
parent | item | integer | nominal | 1=full time
parent, 2=working full time, 3=working part time, 4=studying, 5=unemployed |
| gpartwrkhrs | Partner hours work per week (7 year parent), see value
labels | parent | item | integer | ordinal |
1=5 to 19, 2=20 to 29, 3=30 to 39, 4=40 to 49, 5=50 to 59, 6=60 or more |
| gpasd11/2 | Behaviour: Notices small details (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpasd21/2 | Behaviour: Odd communication style (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpasd31/2 | Behaviour: Embarrassing w/o realising (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpasd41/2 | Behaviour: Unusual eye gaze/gestures (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpasd51/2 | Behaviour: Distressed by changes to routine (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpasd61/2 | Behaviour: Enjoys pretend games (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpasd71/2 | Behaviour: Strong unusual interest (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpasd81/2 | Behaviour: Discrete (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpasd8r1/2 | Behaviour: Discrete (7 year parent), reversed version, see value labels | parent | item | integer | ordinal | 0=certainly true, 1=somewhat true, 2=not true |
| gpasdnont1/2 | Non-Social (ASD) total (7 year parent), 0-12 |
parent | derived | decimal | scale value | 0 to 12 |
| gpasdsoct1/2 | Social (ASD) total (7 year parent), 0-20 |
parent | derived | decimal | scale value | 0 to 20 |
| gpbage | Age of twins when parent booklet completed at 7 |
parent | derived | decimal | quantitative | approx.
6.5 to 8 (years) |
| gpbLLCage | Age of twin when 7 year parent booklet completed (for use in LLC TRE), months |
parent | derived | integer | quantitative |
approx. 79 to 96 (months) |
| gpbLLCdate | Date when 7 year parent booklet completed (for use in LLC TRE), yyyy-mm string |
parent | derived | string | date value |
approx. '2001-02' to '2004-06' |
| gpc011/2 | Picture completion item 1 score (7 year twin phone), see
value labels | child | item | integer | ordinal |
0=incorrect, 1=correct |
| gpc021/2 | Picture completion item 2 score (7 year twin phone), see
value labels | child | item | integer | ordinal |
0=incorrect, 1=correct |
| gpc031/2 | Picture completion item 3 score (7 year twin phone), see
value labels | child | item | integer | ordinal |
0=incorrect, 1=correct |
| gpc041/2 | Picture completion item 4 score (7 year twin phone), see
value labels | child | item | integer | ordinal |
0=incorrect, 1=correct |
| gpc051/2 | Picture completion item 5 score (7 year twin phone), see
value labels | child | item | integer | ordinal |
0=incorrect, 1=correct |
| gpc061/2 | Picture completion item 6 score (7 year twin phone), see
value labels | child | item | integer | ordinal |
0=incorrect, 1=correct |
| gpc071/2 | Picture completion item 7 score (7 year twin phone), see
value labels | child | item | integer | ordinal |
0=incorrect, 1=correct |
| gpc081/2 | Picture completion item 8 score (7 year twin phone), see
value labels | child | item | integer | ordinal |
0=incorrect, 1=correct |
| gpc091/2 | Picture completion item 9 score (7 year twin phone), see
value labels | child | item | integer | ordinal |
0=incorrect, 1=correct |
| gpc101/2 | Picture completion item 10 score (7 year twin phone), see
value labels | child | item | integer | ordinal |
0=incorrect, 1=correct |
| gpc111/2 | Picture completion item 11 score (7 year twin phone), see
value labels | child | item | integer | ordinal |
0=incorrect, 1=correct |
| gpc121/2 | Picture completion item 12 score (7 year twin phone), see
value labels | child | item | integer | ordinal |
0=incorrect, 1=correct |
| gpc131/2 | Picture completion item 13 score (7 year twin phone), see
value labels | child | item | integer | ordinal |
0=incorrect, 1=correct |
| gpc141/2 | Picture completion item 14 score (7 year twin phone), see
value labels | child | item | integer | ordinal |
0=incorrect, 1=correct |
| gpc151/2 | Picture completion item 15 score (7 year twin phone), see
value labels | child | item | integer | ordinal |
0=incorrect, 1=correct |
| gpc161/2 | Picture completion item 16 score (7 year twin phone), see
value labels | child | item | integer | ordinal |
0=incorrect, 1=correct |
| gpc171/2 | Picture completion item 17 score (7 year twin phone), see
value labels | child | item | integer | ordinal |
0=incorrect, 1=correct |
| gpc181/2 | Picture completion item 18 score (7 year twin phone), see
value labels | child | item | integer | ordinal |
0=incorrect, 1=correct |
| gpc191/2 | Picture completion item 19 score (7 year twin phone), see
value labels | child | item | integer | ordinal |
0=incorrect, 1=correct |
| gpc201/2 | Picture completion item 20 score (7 year twin phone), see
value labels | child | item | integer | ordinal |
0=incorrect, 1=correct |
| gpc211/2 | Picture completion item 21 score (7 year twin phone), see
value labels | child | item | integer | ordinal |
0=incorrect, 1=correct |
| gpdata | 7 year parent data present, 1Y 0N | parent |
item | integer | nominal | 0=no, 1=yes |
| gphyp11/2 | Behaviour: Has difficulty completing activities (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gphyp21/2 | Behaviour: Difficulty waiting for things (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpicomt1/2 | Picture completion total score (7 year twin phone),
0-21 | child | derived | integer | scale value |
0 to 21 |
| gppsdcalt1/2 | PSD Callous/Unemotional total (7 year parent), 0-14 |
parent | derived | decimal | scale value | 0 to 14 |
| gppsdnart1/2 | PSD Narcissism scale (7 year parent), 0-10 | parent |
derived | decimal | scale value | 0 to 10 |
| gpsdqbeht1/2 | SDQ problem behaviour total (7 year parent), 0-40 |
parent | derived | decimal | scale value | 0 to 40 |
| gpsdqcon11/2 | Behaviour: Temper tantrums (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpsdqcon21/2 | Behaviour: Obedient (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpsdqcon2r1/2 | Behaviour: Obedient (7 year parent), reversed version, see value labels | parent | item | integer | ordinal | 0=certainly true, 1=somewhat true, 2=not true |
| gpsdqcon31/2 | Behaviour: Often fights/bullies other children (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpsdqcon41/2 | Behaviour: Often lies/cheats (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpsdqcon51/2 | Behaviour: Steals (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpsdqcont1/2 | SDQ conduct total (7 year parent), 0-10 |
parent | derived | decimal | scale value | 0 to 10 |
| gpsdqemo11/2 | Stomach aches, headaches or sickness (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpsdqemo21/2 | Behaviour: Many worries (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpsdqemo31/2 | Behaviour: Unhappy/tearful (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpsdqemo41/2 | Behaviour: Nervous/clingy (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpsdqemo51/2 | Behaviour: Many fears/easily scared (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpsdqemot1/2 | SDQ emotion total (7 year parent), 0-10 |
parent | derived | decimal | scale value | 0 to 10 |
| gpsdqhyp11/2 | Behaviour: Restless, overactive (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpsdqhyp21/2 | Behaviour: Constantly fidgeting/squirming (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpsdqhyp31/2 | Behaviour: Easily distracted (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpsdqhyp41/2 | Behaviour: Thinks things out before acting (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpsdqhyp4r1/2 | Behaviour: Thinks things out before acting (7 year parent), reversed version, see value labels | parent | item | integer | ordinal | 0=certainly true, 1=somewhat true, 2=not true |
| gpsdqhyp51/2 | Behaviour: Sees tasks through to the end (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpsdqhyp5r1/2 | Behaviour: Sees tasks through to the end (7 year parent), reversed version, see value labels | parent | item | integer | ordinal | 0=certainly true, 1=somewhat true, 2=not true |
| gpsdqhypt1/2 | SDQ hyperactivity total (7 year parent), 0-10 |
parent | derived | decimal | scale value | 0 to 10 |
| gpsdqper11/2 | Behaviour: Solitary (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpsdqper21/2 | Behaviour: At least one good friend (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpsdqper2r1/2 | Behaviour: At least one good friend (7 year parent), reversed version, see value labels | parent | item | integer | ordinal | 0=certainly true, 1=somewhat true, 2=not true |
| gpsdqper31/2 | Behaviour: Liked by other children (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpsdqper3r1/2 | Behaviour: Liked by other children (7 year parent), reversed version, see value labels | parent | item | integer | ordinal | 0=certainly true, 1=somewhat true, 2=not true |
| gpsdqper41/2 | Behaviour: Picked on/bullied (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpsdqper51/2 | Behaviour: Gets on better with adults (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpsdqpert1/2 | SDQ peer problem total (7 year parent), 0-10 |
parent | derived | decimal | scale value | 0 to 10 |
| gpsdqpro11/2 | Behaviour: Considerate (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpsdqpro1r1/2 | Behaviour: Considerate (7 year parent), reversed version, see value labels | parent | item | integer | ordinal | 0=certainly true, 1=somewhat true, 2=not true |
| gpsdqpro21/2 | Behaviour: Shares readily (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpsdqpro31/2 | Behaviour: Helpful (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpsdqpro3r1/2 | Behaviour: Helpful (7 year parent), reversed version, see value labels | parent | item | integer | ordinal | 0=certainly true, 1=somewhat true, 2=not true |
| gpsdqpro41/2 | Behaviour: Kind to younger children (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpsdqpro4r1/2 | Behaviour: Kind to younger children (7 year parent), reversed version, see value labels | parent | item | integer | ordinal | 0=certainly true, 1=somewhat true, 2=not true |
| gpsdqpro51/2 | Behaviour: Volunteers to help others (7 year parent), see value labels | parent | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gpsdqprot1/2 | SDQ prosocial total (7 year parent), 0-10 |
parent | derived | decimal | scale value | 0 to 10 |
| grespemploystat | Respondent working for employer status (7 year parent), see value labels |
parent | item | integer | nominal | 0=not working for employer,
1=employed as trainee or employee, 2=manager or supervisor of 4 or fewer workers,
3=manager or supervisor of 5-9 workers, 4=manager or supervisor of 10-19 workers,
5=manager or supervisor of 20+ workers |
| gresphqual | Respondent highest level of qualification (7 year
parent), see value labels | parent | item | integer |
ordinal | 1=no qualifications, 2=1 to 4 GCSEs, 3=5 or more GCSEs, 4=1 A-level, 5=2
or more A-levels, 6=first degree, 7=higher degree |
| grespmstatus | Respondent marital status (7 year parent), see value
labels | parent | item | integer | nominal |
1=married to parent, 2=married to other, 3=cohabiting with parent,
4=cohabiting with other, 5=divorced, 6=separated, 7=widowed, 8=unmarried, 9=single unspecified |
| gresprel | Respondent relationship to twins (7 year parent), see value
labels | parent | item | integer | nominal |
1=birth mother, 2=natural father, 0=other |
| grespselfemstat | Respondent self employment status (7 year parent), see value labels |
parent | item | integer | nominal | 0=not self-employed,
1=self-employed without employees, 2=self-employed: 4 or fewer employees,
2=self-employed: 5-9 employees, 3=self-employed: 10-19 employees, 2=self-employed: 20+ employees
|
| grespsoc | Respondent SOC: ordinal employment category (7 year
parent), 1-9 | parent | item | integer | ordinal |
1=managers, 2=professional, 3=technical, 4=administrative, 5=skilled trade,
6=personal service, 7=sales and customer service, 8=unskilled operatives,
9=elementary occupations |
| grespunem | Respondent how long unemployed (7 year parent), see value
labels | parent | item | integer | ordinal |
1=less than 3 months, 2=3 to 6 months, 3=7 to 11 months, 4=1 to 2 years,
5=over 2 years |
| grespwork | Respondent working (7 year parent), see value labels |
parent | item | integer | nominal | 1=full time
parent, 2=working full time, 3=working part time, 4=studying, 5=unemployed |
| grespwrkhrs | Respondent hours work/week (7 year parent), see value
labels | parent | item | integer | ordinal |
1=5 to 19, 2=20 to 29, 3=30 to 39, 4=40 to 49, 5=50 to 59, 6=60 or more |
| gsamecl | Twins in same class (7 year parent), 1same 2different |
parent | item | integer | nominal | 1=same,
2=different |
| gsamesch | Twins at same school at 7 (from admin database), 1Y 0N |
admin | item | integer | nominal | 0=no, 1=yes |
| gsametch | Twins have same teacher at 7 (from admin database), 1Y
0N | admin | item | integer | nominal | 0=no,
1=yes |
| gscalle1/2 | Allergy (7 year parent), 1Y 0N | parent |
item | integer | nominal | 0=no, 1=yes |
| gscasth1/2 | Asthma (7 year parent), 1Y 0N | parent |
item | integer | nominal | 0=no, 1=yes |
| gscfeel1/2 | Feelings about going to school (7 year parent), see
value labels | parent | item | integer | ordinal |
1=very negative, 2=quite negative, 3=no real effect, 4=quite positive,
5=very positive |
| gscoffl1/2 | Longest time off school (7 year parent), see value
labels | parent | item | integer | ordinal |
0=none, 1=1 day, 2=2 to 4 days, 3=5 to 10 days, 4=11 to 20 days, 5=21 days or more |
| gscskin1/2 | Skin complaint (7 year parent), 1Y 0N | parent |
item | integer | nominal | 0=no, 1=yes |
| gsen1/2 | Statement of SEN (7 year parent), 1Y 0N | parent |
item | integer | nominal | 0=no, 1=yes |
| gsenass1/2 | Assessment of SEN (7 year parent), 1Y 0N |
parent | item | integer | nominal | 0=no, 1=yes |
| gses | SES composite variable (7 year parent), standardised |
parent | derived | decimal | scale value | approx.
-3 to +3 (standardised) |
| gsevenyr | 7 year study data present, 1Y 0N | parent, child,
teacher | derived | integer | nominal | 0=no, 1=yes |
| gshospl | Sib longest stay in hospital (7 year parent), see value
labels | parent | item | integer | ordinal |
1=1 night, 2=2 to 4 nights, 3=5 to 6 nights, 4=7 nights, 5=8 to 10 nights,
6=11 to 14 nights, 7=over 14 nights |
| gsihead1/2 | Headaches (7 year parent), 1Y 0N | parent |
item | integer | nominal | 0=no, 1=yes |
| gsim011/2 | Similarities item 1 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
1=right, 0=wrong |
| gsim021/2 | Similarities item 2 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
1=right, 0=wrong |
| gsim031/2 | Similarities item 3 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
1=right, 0=wrong |
| gsim041/2 | Similarities item 4 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
1=right, 0=wrong |
| gsim051/2 | Similarities item 5 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=wrong, 1=partly correct, 2=fully correct |
| gsim061/2 | Similarities item 6 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=wrong, 1=partly correct, 2=fully correct |
| gsim071/2 | Similarities item 7 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=wrong, 1=partly correct, 2=fully correct |
| gsim081/2 | Similarities item 8 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=wrong, 1=partly correct, 2=fully correct |
| gsim091/2 | Similarities item 9 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=wrong, 1=partly correct, 2=fully correct |
| gsim101/2 | Similarities item 10 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=wrong, 1=partly correct, 2=fully correct |
| gsim111/2 | Similarities item 11 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=wrong, 1=partly correct, 2=fully correct |
| gsim121/2 | Similarities item 12 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=wrong, 1=partly correct, 2=fully correct |
| gsim131/2 | Similarities item 13 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=wrong, 1=partly correct, 2=fully correct |
| gsimilt1/2 | Similarities total score (7 year twin phone), 0-22 |
child | derived | integer | scale value | 0 to 22 |
| gsistom1/2 | Stomach aches (7 year parent), 1Y 0N | parent |
item | integer | nominal | 0=no, 1=yes |
| gsivomi1/2 | Vomiting (7 year parent), 1Y 0N | parent |
item | integer | nominal | 0=no, 1=yes |
| gspchdif1/2 | Talking difficulties (7 year parent), see value
labels | parent | item | integer | nominal |
0=no, 1=yes slow to develop, 2=yes stammer or stutter, 3=yes cleft lip or
palate, 4=yes word pronunciation problems, 5=yes lisp,
6=yes physical ENT problem, 7=yes mumbling, 8=yes was temporary now OK,
9=yes had own language, 10=yes other or unspecified |
| gspt1/2 | Speech therapy (7 year parent), see value labels |
parent | item | integer | ordinal | 0=no, 1=one
visit, 2=course of visits |
| gsptage1/2 | Speech therapy started at what age in years (7 year
parent), 2-7 | parent | item | integer |
quantitative | 2 to 7 (years old) |
| gspthl1/2 | Speech therapy for how long (7 year parent), see value
labels | parent | item | integer | ordinal |
1=one visit, 2=2 to 5 months, 3=6 to 12 months, 4=over a year |
| gsymprob1/2 | Have symptoms affected activities (7 year parent),
1Y 0N | parent | item | integer | nominal |
0=no, 1=yes |
| gt2ac1/2 | 2-subject (English, maths) mean NC level (7 year teacher),
0-4 | teacher | derived | decimal | scale
value | 0 to 4 (NC level) |
| gtanx011/2 | Behaviour: Afraid of heights/dark (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtanx031/2 | Behaviour: Afraid in social situations (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtanx041/2 | Behaviour: Checks things are done right (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtanx051/2 | Behaviour: Asks for reassurance (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtanx061/2 | Behaviour: Does things over and over (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtanx071/2 | Behaviour: Shy or timid (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtanx101/2 | Behaviour: Does not enjoy him/herself (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtanx111/2 | Behaviour: Critical of him/herself (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtanx121/2 | Behaviour: Complains (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtanx131/2 | Behaviour: Low self-confidence (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtanx141/2 | Behaviour: Fussy (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtanx151/2 | Behaviour: Blames him/herself (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtanx161/2 | Behaviour: Upset when parent leaves (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtanx171/2 | Behaviour: Seems keyed up or tense (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtanx181/2 | Behaviour: Afraid of animals or insects (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtanx191/2 | Behaviour: Anxious (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtanx211/2 | Behaviour: Fussy about keeping clean (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtanxfeart1/2 | ARBQ fear total (7 year teacher), 0-6 | parent | derived | decimal | scale |
0 to 6 |
| gtanxnafft1/2 | ARBQ negative affect total (7 year teacher), 0-10 | parent | derived | decimal | scale |
0 to 10 |
| gtanxncogt1/2 | ARBQ negative cognition total (7 year teacher),
0-12 | parent | derived | decimal | scale | 0
to 12 |
| gtanxocbt1/2 | ARBQ OCB total (7 year teacher), 0-8 | parent | derived | decimal | scale | 0 to 8 |
| gtanxshyt1/2 | ARBQ shyness (social anxiety) total (7 year
teacher), 0-6 | parent | derived | decimal | scale |
0 to 6 |
| gtanxt1/2 | ARBQ overall anxiety total (7 year teacher), 0-44 | parent | derived | decimal | scale |
0 to 44 |
| gtaps031/2 | Behaviour: Concerned how well s/he does (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtaps03r1/2 | Behaviour: Concerned how well s/he does (7 year teacher), reversed version, see value labels | teacher | item | integer | ordinal | 0=certainly true, 1=somewhat true, 2=not true |
| gtaps051/2 | Behaviour: Emotions seem shallow (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtaps081/2 | Behaviour: Brags (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtaps111/2 | Behaviour: Teases (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtaps121/2 | Behaviour: Feels guilty when done wrong (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtaps12r1/2 | Behaviour: Feels guilty when done wrong (7 year teacher), reversed version, see value labels | teacher | item | integer | ordinal | 0=certainly true, 1=somewhat true, 2=not true |
| gtaps141/2 | Behaviour: Can turn on charm (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtaps161/2 | Behaviour: Thinks s/he is more important (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtaps191/2 | Behaviour: Does not show feelings (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtasd11/2 | Behaviour: Notices small details (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtasd21/2 | Behaviour: Odd communication style (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtasd31/2 | Behaviour: Says embarrassing things (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtasd41/2 | Behaviour: Unusual gaze/expression/gesture (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtasd51/2 | Behaviour: Distressed by changes (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtasd61/2 | Behaviour: Enjoys pretend games (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtasd71/2 | Behaviour: Interested in unusual topic (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtasd81/2 | Behaviour: Takes hints and keeps secrets (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtasd8r1/2 | Behaviour: Takes hints and keeps secrets (7 year teacher), reversed version, see value labels | teacher | item | integer | ordinal | 0=certainly true, 1=somewhat true, 2=not true |
| gtasdnont1/2 | Non-Social (ASD) total (7 year teacher), 0-12 |
teacher | derived | decimal | scale value | 0 to 12 |
| gtasdsoct1/2 | Social (ASD) total (7 year teacher), 0-20 |
teacher | derived | decimal | scale value | 0 to 20 |
| gtbehav1/2 | Behaviour relative to other pupils (7 year teacher),
see value labels | teacher | item | integer |
ordinal | 1=much less, 2=somewhat less, 3=slightly less, 4=about
average, 5=slightly more, 6=somewhat more, 7=much more |
| gtdata1/2 | 7 year teacher data present, 1Y 0N | teacher |
item | integer | nominal | 0=no, 1=yes |
| gtdiff1/2 | Emotional/concentration/behaviour/social difficulties
(7 year teacher), see value labels | teacher | item |
integer | ordinal | 0=no, 1=minor, 2=definite, 3=severe
difficulties |
| gtdiffb1/2 | Difficulties: burden on teacher or class (7 year
teacher), see value labels | teacher | item | integer |
ordinal | 0=not at all, 1=only a little, 2=quite a lot, 3=a great deal |
| gtdiffc1/2 | Difficulties: interfere with classroom learning (7
year teacher), see value labels | teacher | item | integer |
ordinal | 0=not at all, 1=only a little, 2=quite a lot, 3=a great deal |
| gtdiffl1/2 | Difficulties: how long present (7 year teacher), see
value labels | teacher | item | integer | ordinal |
1=less than a month, 2=1 to 5 months, 3=6 to 12 months, 4=over a year |
| gtdiffp1/2 | Difficulties: interfere with peer relationships (7
year teacher), see value labels | teacher | item | integer |
ordinal | 0=not at all, 1=only a little, 2=quite a lot, 3=a great deal |
| gtdiffu1/2 | Difficulties: upset the child (7 year teacher), see
value labels | teacher | item | integer | ordinal |
0=not at all, 1=only a little, 2=quite a lot, 3=a great deal |
| gteff1/2 | Effort relative to other pupils (7 year teacher), see
value labels | teacher | item | integer | ordinal |
1=much less, 2=somewhat less, 3=slightly less, 4=about average, 5=slightly
more, 6=somewhat more, 7=much more |
| gteng1/2 | English mean NC level (7 year teacher),
0-4 | teacher | derived | decimal | scale
value | 0 to 4 (NC level) |
| gtengrd1/2 | English Reading NC level (7 year teacher), see value
labels | teacher | item | integer | ordinal |
0=working towards level 1, 1=level 1, 2=level 2, 3=level 3, 4=level 4 or
above |
| gtengsl1/2 | English Speaking & Listening NC level (7 year
teacher), see value labels | teacher | item | integer |
ordinal | 0=working towards level 1, 1=level 1, 2=level 2, 3=level 3,
4=level 4 or above |
| gtengwr1/2 | English Writing NC level (7 year teacher), see value
labels | teacher | item | integer | ordinal |
0=working towards level 1, 1=level 1, 2=level 2, 3=level 3, 4=level 4 or
above |
| gthappy1/2 | Happiness relative to other pupils (7 year teacher),
see value labels | teacher | item | integer |
ordinal | 1=much less, 2=somewhat less, 3=slightly less, 4=about
average, 5=slightly more, 6=somewhat more, 7=much more |
| gthyp11/2 | Behaviour: Has difficulty completing activities (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gthyp21/2 | Behaviour: Difficulty waiting for things (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtknow1/2 | How well does teacher know twin (7 year teacher), see
value labels | teacher | item | integer | ordinal |
1=not well, 2=moderately, 3=very well |
| gtlearn1/2 | Learning relative to other pupils (7 year teacher),
see value labels | teacher | item | integer |
ordinal | 1=much less, 2=somewhat less, 3=slightly less, 4=about
average, 5=slightly more, 6=somewhat more, 7=much more |
| gtmat1/2 | Maths mean NC level (7 year teacher),
0-4 | teacher | derived | decimal | scale
value | 0 to 4 (NC level) |
| gtmathn1/2 | Maths Numbers NC level (7 year teacher), see value
labels | teacher | item | integer | ordinal |
0=working towards level 1, 1=level 1, 2=level 2, 3=level 3, 4=level 4 or
above |
| gtmaths1/2 | Maths Shapes, Spaces & Measures NC level (7 year
teacher), see value labels | teacher | item | integer |
ordinal | 0=working towards level 1, 1=level 1, 2=level 2, 3=level 3,
4=level 4 or above |
| gtmathu1/2 | Maths Using & Applying NC level (7 year teacher), see
value labels | teacher | item | integer | ordinal |
0=working towards level 1, 1=level 1, 2=level 2, 3=level 3, 4=level 4 or
above |
| gtpsdcalt1/2 | PSD Callous/Unemotional total (7 year teacher), 0-14 |
teacher | derived | decimal | scale value | 0 to 14 |
| gtpsdnart1/2 | PSD Narcissism total (7 year teacher), 0-10 |
teacher | derived | decimal | scale value | 0 to 10 |
| gtownw1/2 | TOWRE non-word score (7 year twin phone), 0-54 |
child | item | integer | ordinal | 0-54 (score) |
| gtowt1/2 | Composite TOWRE standardised score (7 year twin phone),
standardised | child | derived | decimal | scale
value | approx. -3 to +3 (standardised) |
| gtowwd1/2 | TOWRE word score (7 year twin phone), 0-85 |
child | item | integer | ordinal | 0-85 (score) |
| gtqage1/2 | Age of twin when teacher questionnaire returned at 7 |
teacher | derived | decimal | quantitative | approx.
6.5 to 8 (years) |
| gtqLLCage1 | Age of twin when 7 year teacher questionnaire completed (for use in LLC TRE), months |
teacher | derived | integer | quantitative |
approx. 80 to 94 (months) |
| gtqLLCdate1 | Date when 7 year teacher questionnaire completed (for use in LLC TRE), yyyy-mm string |
teacher | derived | string | date value |
approx. '2001-04' to '2004-07' |
| gtsdqbeht1/2 | SDQ problem behaviour total (7 year teacher), 0-40 |
teacher | derived | decimal | scale value | 0 to 40 |
| gtsdqcon11/2 | Behaviour: Has temper tantrums (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtsdqcon21/2 | Behaviour: Obedient (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtsdqcon2r1/2 | Behaviour: Obedient (7 year teacher), reversed version, see value labels | teacher | item | integer | ordinal | 0=certainly true, 1=somewhat true, 2=not true |
| gtsdqcon31/2 | Behaviour: Fights with other children (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtsdqcon41/2 | Behaviour: Lies or cheats (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtsdqcon51/2 | Behaviour: Steals (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtsdqcont1/2 | SDQ conduct total (7 year teacher), 0-10 |
teacher | derived | decimal | scale value | 0 to 10 |
| gtsdqemo11/2 | Behaviour: Often headaches/stomachaches/sickness (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtsdqemo21/2 | Behaviour: Often worried (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtsdqemo31/2 | Behaviour: Unhappy (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtsdqemo41/2 | Behaviour: Nervous in new situations (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtsdqemo51/2 | Behaviour: Many fears (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtsdqemot1/2 | SDQ emotion total (7 year teacher), 0-10 |
teacher | derived | decimal | scale value | 0 to 10 |
| gtsdqhyp11/2 | Behaviour: Restless, overactive (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtsdqhyp21/2 | Behaviour: Fidgets (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtsdqhyp31/2 | Behaviour: Easily distracted (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtsdqhyp41/2 | Behaviour: Thinks before acting (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtsdqhyp4r1/2 | Behaviour: Thinks before acting (7 year teacher), reversed version, see value labels | teacher | item | integer | ordinal | 0=certainly true, 1=somewhat true, 2=not true |
| gtsdqhyp51/2 | Behaviour: Sees tasks through (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtsdqhyp5r1/2 | Behaviour: Sees tasks through (7 year teacher), reversed version, see value labels | teacher | item | integer | ordinal | 0=certainly true, 1=somewhat true, 2=not true |
| gtsdqhypt1/2 | SDQ hyperactivity total (7 year teacher), 0-10 |
teacher | derived | decimal | scale value | 0 to 10 |
| gtsdqper11/2 | Behaviour: Solitary (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtsdqper21/2 | Behaviour: Has a good friend (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtsdqper2r1/2 | Behaviour: Has a good friend (7 year teacher), reversed version, see value labels | teacher | item | integer | ordinal | 0=certainly true, 1=somewhat true, 2=not true |
| gtsdqper31/2 | Behaviour: Liked by other children (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtsdqper3r1/2 | Behaviour: Liked by other children (7 year teacher), reversed version, see value labels | teacher | item | integer | ordinal | 0=certainly true, 1=somewhat true, 2=not true |
| gtsdqper41/2 | Behaviour: Picked on or bullied (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtsdqper51/2 | Behaviour: Gets on better with adults (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtsdqpert1/2 | SDQ peer problem total (7 year teacher), 0-10 |
teacher | derived | decimal | scale value | 0 to 10 |
| gtsdqpro11/2 | Behaviour: Considerate (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtsdqpro1r1/2 | Behaviour: Considerate (7 year teacher), reversed version, see value labels | teacher | item | integer | ordinal | 0=certainly true, 1=somewhat true, 2=not true |
| gtsdqpro21/2 | Behaviour: Shares with other children (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtsdqpro31/2 | Behaviour: Helpful if someone hurt (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtsdqpro3r1/2 | Behaviour: Helpful if someone hurt (7 year teacher), reversed version, see value labels | teacher | item | integer | ordinal | 0=certainly true, 1=somewhat true, 2=not true |
| gtsdqpro41/2 | Behaviour: Kind to younger children (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtsdqpro4r1/2 | Behaviour: Kind to younger children (7 year teacher), reversed version, see value labels | teacher | item | integer | ordinal | 0=certainly true, 1=somewhat true, 2=not true |
| gtsdqpro51/2 | Behaviour: Volunteers to help others (7 year teacher), see value labels | teacher | item | integer | ordinal | 0=not true, 1=somewhat true, 2=certainly true |
| gtsdqprot1/2 | SDQ prosocial total (7 year teacher), 0-10 |
teacher | derived | decimal | scale value | 0 to 10 |
| gtsped1/2 | Twin referred for special education/services (7 year
teacher), 1Y 0N | teacher | item | integer | nominal |
0=no, 1=yes |
| gttype1/2 | Type of school (7 year teacher), see value labels |
teacher | item | integer | nominal | 1=day school,
2=boarding school, 3=special education |
| gvoc011/2 | Vocabulary item 1 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=wrong, 1=partly correct, 2=fully correct |
| gvoc021/2 | Vocabulary item 2 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=wrong, 1=partly correct, 2=fully correct |
| gvoc031/2 | Vocabulary item 3 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=wrong, 1=partly correct, 2=fully correct |
| gvoc041/2 | Vocabulary item 4 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=wrong, 1=partly correct, 2=fully correct |
| gvoc051/2 | Vocabulary item 5 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=wrong, 1=partly correct, 2=fully correct |
| gvoc061/2 | Vocabulary item 6 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=wrong, 1=partly correct, 2=fully correct |
| gvoc071/2 | Vocabulary item 7 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=wrong, 1=partly correct, 2=fully correct |
| gvoc081/2 | Vocabulary item 8 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=wrong, 1=partly correct, 2=fully correct |
| gvoc091/2 | Vocabulary item 9 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=wrong, 1=partly correct, 2=fully correct |
| gvoc101/2 | Vocabulary item 10 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=wrong, 1=partly correct, 2=fully correct |
| gvoc111/2 | Vocabulary item 11 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=wrong, 1=partly correct, 2=fully correct |
| gvoc121/2 | Vocabulary item 12 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=wrong, 1=partly correct, 2=fully correct |
| gvoc131/2 | Vocabulary item 13 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=wrong, 1=partly correct, 2=fully correct |
| gvoc141/2 | Vocabulary item 14 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=wrong, 1=partly correct, 2=fully correct |
| gvoc151/2 | Vocabulary item 15 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=wrong, 1=partly correct, 2=fully correct |
| gvoc161/2 | Vocabulary item 16 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=wrong, 1=partly correct, 2=fully correct |
| gvoc171/2 | Vocabulary item 17 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=wrong, 1=partly correct, 2=fully correct |
| gvoc181/2 | Vocabulary item 18 score (7 year twin phone), see value
labels | child | item | integer | ordinal |
0=wrong, 1=partly correct, 2=fully correct |
| gvocabt1/2 | Vocabulary total score (7 year twin phone), 0-36 |
child | derived | integer | scale value | 0 to 36 |
| gwets1/2 | Wetting or soiling (7 year parent), see value labels |
parent | item | integer | nominal | 0=no, 1=yes wets
bed at night, 2=yes wets self during day, 3=yes soils self, 4=yes but
category not stated |
| gwmup11/2 | Warm up item 1 score (7 year twin phone), 1=right 0=wrong |
child | item | integer | ordinal | 0=wrong answer,
1=correct answer |
| gwmup21/2 | Warm up item 2 score (7 year twin phone), 1=right 0=wrong |
child | item | integer | ordinal | 0=wrong answer,
1=correct answer |
| gwmup31/2 | Warm up item 3 score (7 year twin phone), 1=right 0=wrong |
child | item | integer | ordinal | 0=wrong answer,
1=correct answer |
| gwmup41/2 | Warm up item 4 score (7 year twin phone), 1=right 0=wrong |
child | item | integer | ordinal | 0=wrong answer,
1=correct answer |
| gwmup51/2 | Warm up item 5 score (7 year twin phone), 1=right 0=wrong |
child | item | integer | ordinal | 0=wrong answer,
1=correct answer |
| gwtkg1/2 | Twin weight in kg (7 year parent) | parent |
item | decimal | quantitative |
approx. 13 to 45 (kilograms) |