School ID
Student ID
Grade Q1a
<Programme> Q1b
Birth Month Q1Month
Birth Year Q1Year
Sex Q3
Lives at home Mother Q4a
Lives at home female guard. Q4b
Lives at home Father Q4c
Lives at home male guard. Q4d
Lives at home Others Q4e
Mother currently doing Q5
Father currently doing Q6
Mother’s main job Q7
Father’s main job Q9
Mother <ISCED 3A> Q11a
Mother <ISCED3B or 3C> Q11b
Mother <ISCED2> Q11c
Mother <ISCED1> Q11d
Mother None of above Q11e
Mother <ISCED5A or 6> Q12a
Mother <ISCED5B> Q12b
Mother <ISCED4> Q12c
Father <ISCED 3A> Q13a
Father <ISCED3B or 3C> Q13b
Father <ISCED2> Q13c
Father <ISCED1> Q13d
Father none of above Q13e
Father <ISCED 5A or 6> Q14a
Father <ISCED 5B> Q14b
Father <ISCDED 4> Q14c
Country of birth Self Q15a_a
Country of birth Mother Q15a_b
Country of birth Father Q15a_c
Country of birth Age Q15b
Language at home Q16
Possessions desk Q17a
Possessions own room Q17b
Possessions study place Q17c
Possessions computer Q17d
Possessions software Q17e
Possessions Internet Q17f
Possessions calculator Q17g
Possessions literature Q17h
Possessions poetry Q17i
Possessions art Q17j
Possessions textbooks Q17k
Possessions dictionary Q17l
Possessions dishwasher Q17m
Possessions <Cntry item 1> Q17n
Possessions <Cntry item 2> Q17o
Possessions <Cntry item 3> Q17p
How many books at home Q19
Attend <ISCED 0> Q20
<ISCED 1>Years Q21
Repeat <ISCED 1> Q22a
Repeat <ISCED 2> Q22b
Repeat <ISCED 3> Q22c
Expect <ISCED 2> Q23a
Expect <ISCED 3B or 3C> Q23b
Expect <ISCED 3A> Q23c
Expect <ISCED 4> Q23d
Expect <ISCED 5B> Q23e
Expect <ISCED 5A or 6> Q23f
School done little Q24a
School waste of time Q24b
School given confidence Q24c
School useful Q24d
Attend local Q25a
Attend better Q25b
Attend specific program Q25c
Attend religious Q25d
Attend family Q25e
Attend Other Q25f
Well with Students Q26a
Interested in Students Q26b
Listen to me Q26c
Give extra help Q26d
Treat me fairly Q26e
Feel an outsider Q27a
Make friends Q27b
Feel I belong Q27c
Feel awkward Q27d
Think I'm liked Q27e
Feel lonely Q27f
Late for school Q28
Hours All homework Q29a
Hours All <Remedial> Q29b
Hours All <Enrichment> Q29c
Hours All tutor Q29d
Hours All <out-of-school> Q29e
Hours All other study Q29f
Attitude enjoy reading Q30a
Attitude effort Q30b
Attitude look forward Q30c
Attitude enjoy Maths Q30d
Attitude career Q30e
Attitude interested Q30f
Attitude further study Q30g
Attitude job Q30h
Confident timetable Q31a
Confident discount Q31b
Confident area Q31c
Confident graphs Q31d
Confident linear Q31e
Confident distance Q31f
Confident quadratics Q31g
Confident rate Q31h
Feel study_worry Q32a
Feel study_not good Q32b
Feel study_tense Q32c
Feel study_good <marks> Q32d
Feel study_nervous Q32e
Feel study_quickly Q32f
Feel study_best subject Q32g
Feel study_helpless Q32h
Feel study_underst. diffc. Q32i
Feel study_poor <marks> Q32j
Hours Maths homework Q33a
Hours Maths <Remedial> Q33b
Hours Maths <Enrichment> Q33c
Hours Maths tutor Q33d
Hours Maths <out-of-school> Q33e
Hours Maths other Q33f
Learn_important parts Q34a
Learn_new ways Q34b
Learn_check myself Q34c
Learn_concepts Q34d
Learn_everyday life Q34e
Learn_solve when sleep Q34f
Learn_by heart Q34g
Learn_by relating Q34h
Learn_examples Q34i
Learn_clarify Q34j
Learn_applied Q34k
Learn_exactly Q34l
Learn_procedure Q34m
Learn_relate Q34n
Minutes in <class period> Q35a
Maths <class periods> Q35b
All <class periods> Q35c
Ratio of Maths
Minutes of Maths per week
Total minutes of instructional time p/w
Students in Maths Q36
Attitudes be the best Q37a
Attitudes group work Q37b
Attitudes exams Q37c
Attitudes project Q37d
Attitudes effort Q37e
Attitudes work with other Q37f
Attitudes do better Q37g
Attitudes helping Q37h
Attitudes learn most Q37i
Attitudes best work Q37j
Lesson interested Q38a
Lesson don’t listen Q38b
Lesson extra help Q38c
Lesson book work Q38d
Lesson help learning Q38e
Lesson noise Q38f
Lesson understand Q38g
Lesson <quieten down> Q38h
Lesson can't work well Q38i
Lesson opinions Q38j
Lesson late start Q38k
Miss two months <ISCED 1> Q1
Miss two months <ISCED 2> Q2
Change while in <ISCED 1> Q3
Change while in <ISCED 2> Q4
Changed <study programme> since <Grade X> Q5
Type <Mathematics class> Q6
Pass mark in Maths Q7
Mark in Maths in percentages
Job at 30 Q8
Available at home IC1a
Available at school IC1b
Available at other places IC1c
Used computer IC2
How long using computers Q3
Use often at home IC4a
Use often at school IC4b
Use often at other places IC4c
How often information IC5a
How often games IC5b
How often Word IC5c
How often group IC5d
How often spreadsheets IC5e
How often Internet software? IC5f
How often graphics IC5g
How often educ software IC5h
How often learning IC5i
How often download music IC5j
How often programming IC5k
How often chatrooms IC5l
How well start game IC6a
How well antiviruses IC6b
How well open file IC6c
How well edit IC6d
How well scroll IC6e
How well addresses IC6f
How well copy IC6g
How well save IC6h
How well print IC6i
How well delete IC6j
How well move IC6k
How well Internet IC6l
How well download file IC6m
How well attach IC6n
How well program IC6o
How well spreadsheet plot IC6p
How well PowerPoint IC6q
How well games IC6r
How well download music IC6s
How well multimedia IC6t
How well draw IC6u
How well emails IC6v
How well web page IC6w
Feel important IC7a
Feel fun IC7b
Feel interested IC7c
Feel forget time IC7d
Learn Computer IC8
Learn Internet IC9
ISCED Level
ISCED Designation
ISCED Orientation
ISCO code Mother
ISCO code Father
ISCO code Student
Highest parental occupational status
ISO code country of birth Student
ISO code country of birth Mother
ISO code country of birth Father
Language at home, national
Age of student
Instructional weeks in year
Hours in total in school week
Hours for instruction in school week
Educational level of mother (ISCED)
Educational level of father (ISCED)
Highest educational level of parents
Expected educational level of student (ISCED)
Country of birth
Grade compared to modal grade in country
Relative time spent on Maths homework
Mother White collar/Blue collar classification
Father White collar/Blue collar classification
Highest parent White collar/Blue collar classification
Mathematics anxiety (WLE)
Attitudes towards school (WLE)
ICT: Attitudes towards computers (WLE)
Sense of belonging to school (WLE)
Computer facilities at home (WLE)
Competitive learning (WLE)
Co-operative learning (WLE)
Control strategies (WLE)
Cultural possessions of the family (WLE)
Disciplinary climate in maths lessons (WLE)
Elaboration strategies (WLE)
Home educational resources (WLE)
ICT: Confidence in high-level tasks (WLE)
Instrumental motivation in mathematics (WLE)
ICT: Confidence in internet tasks (WLE)
Interest in mathematics (WLE)
ICT: Internet/entertainment use (WLE)
Mathematics self-efficacy (WLE)
Memorisation strategies (WLE)
ICT: Programs/software use (WLE)
ICT: Confidence in routine tasks (WLE)
Mathematics self-concept (WLE)
Student-teacher relations at school (WLE)
Teacher support in maths lessons (WLE)
Warm estimate in math
Estmation error for wlemath
Warm estimate in math - Space and Shape
Estmation error for wlemath1
Warm estimate in math - Change and Relationships
Estmation error for wlemath2
Warm estimate in math - Uncertainty
Estmation error for wlemath3
Warm estimate in math - Quantity
Estmation error for wlemath4
Warm estimate in reading
Estmation error for wleread
Warm estimate in science
Estmation error for wlescie
Warm estimate in problem solving
Estmation error for wleprob
Plausible value in math
Plausible value in math - Space and Shape
Plausible value in math- Change and Relationships
Plausible value in math - Uncertainty
Plausible value in math - Quantity
Plausible value in reading
Plausible value in science
Plausible value in problem solving
Student final weight
Country weight factor
BRR replicate
Family Structure