School grade
0 = 8th grade
1 = 9th grade
2 = 10th grade
3 = 11th grade
4 = 12th grade
5 = 13th grade
6 = 14th grade
7 = 15th grade
8 = 16th grade
9 = 17th grade

Apprenticeship training
1 = Construction and building
2 = Automobile trades
3 = Food industry
4 = Sales
5 = Agriculture
6 = Industrial specialist
7 = Clerical professions
8 = Traffic and transportation industry
9 = Banks, postal service
10 = Graphical design, CAD
11 = Chemical industry, textiles
12 = Tourism, Home economics
13 = Watch maker, precision tool maker
14 = Personal hygiene, health care professions
15 = Human services professions, education, art
16 = Electronics, telecommunications, computers

Pre-apprenticeship school
1 = Sonderschule/klasse
2 = Abschlussklasse/Realschule
3 = Sekundarschule
4 = Berufslehre/Berufsschule
5 = Handelsschule
6 = Gymnasium, Lehrerseminar

1 = Male
2 = Female

Home situation (A01)
1 = Biological parents
2 = Biological mother only
3 = Biological father only
4 = Biological mother and stepfather
5 = Biological father and stepmother
6 = Biological parent and significant other
7 = Other

Parental marital status (A02)
1 = Married
2 = Remarried
3 = Divorced
4 = Separated
5 = Widowed
6 = They never married

Father work (A03)
1 = Does not apply
2 = He is retired
3 = He does not work
4 = He is unemployed, but looking for work
5 = He has one part time job
6 = He has one full time job
7 = He has multiple jobs

Father education (A04)
1 = Does not apply
2 = Realschule/Abschlussklasse/Sekundarschule
3 = Lehre
4 = Handelsdiplom/Weiterbildung
5 = Gymnasium oder Lehrerseminar
6 = Universitat

Father education (original data; A04ORIG)
1 = Does not apply
2 = Realschule/Abschlussklasse
3 = Sekundarschule
4 = Lehre
5 = Handelsdiplom/Weiterbildung
6 = Gymnasium oder Lehrerseminar
7 = Universitat

Mother work (A05)
1 = Does not apply
2 = She is retired
3 = She does not work
4 = She is unemployed, but looking for work
5 = She has one part time job
6 = She has one full time job
7 = She has multiple jobs

Family income (A14)
1 = CHF 30K or less ($20K or less)
2 = CHF 30K to 60K ($20K to $35K)
3 = CHF 60K to 90K ($35K to $60K)
4 = CHF 90K to 120K ($60K to $100K)
5 = CHF 120K or more ($100K or more)

Primary wage earner (A15)
1 = Executive
2 = Professional
3 = Semi-professional
4 = Clerical
5 = Semiskilled
6 = Laborer

Mother ask (D01)
1 = Strongly disagree
2 = Disagree
3 = Neither disagree nor agree
4 = Agree
5 = Strongly agree

Mother talk partner (D16)
1 = Never
2 = Occasionally
3 = Sometimes
4 = Often
5 = Very often

Smash bottles (G01)
1 = No/never
2 = Once/one time
3 = 2-3 times
4 = 4-6 times
5 = 6 or more times

Vandalism (G72)
1 = None
2 = Some
3 = A lot