This questionnaire module contains questions on: bullying experiences at workplace; discrimination on grounds of ethnic or cultural background, sex, religion, age, sexual identity, or disability, and burden of discrimination; occurence of externalising problem behavior (e.g. being restless and easily distracted, having tantrums, lying and cheating); occurence of internalising problem behavior (e.g. headaches and nausea, nervousness, and being easily scared); sexual attraction to males and females, sexual labeling, sexual behavior; subjective social status.