This questionnaire module contains questions on: academic self concept: anticipated self-perceived ability; academic self concept: general self-perceived ability; academic self concept: self-perceived ability in math and German; academic self concept: self-perceived job ability; academic self-concept: verbal and spatial skill (preschool); achievement motivation in general; achievement motivation in school; after-school job; anticipated intrinsic motivation; anticipated learning motivation; commuting; current employment; desired school-leaving qualification; deviant behavior young children (e.g. lying/cheating, fighting with other children); expected probability to attain a degree; history of education and graduation: educational degrees, vocational training, year abroad; history of education and graduation: skipping/repeating a grade; intrinsic motivation for math and German; intrinsic motivation for school in general; involvement of (step-) parents (expectations, support, encouragement and punishment); job learning motivation; learning motivation for school in general; occupational status; parenting style of mother, father, partner of father, partner of mother (child report); partnership and marital status; perceived income equity; perceived job security and satisfaction; previous employment; recommendation for secondary education; required qualification for occupation; twin relationship: warmth, conflict, affection, hostility, rivalry; twin-specific questions for parents (e.g., dress twins alike); type of education / training; current status of education / qualification; wages, income; working time; year of immigration, country of birth, residential status, language spoken at home.