Structure of the validation questionnair
Data for the longitudinal part of the Child Safe study were gathered using a questionnaire including the PSQ-S and five standardized instruments for the psychometric comparisons. Data from the baseline questionnaire administered to parents before the intervention were used in the present study. Demographic information included the respondent’s age, educational level, occupation, marital status, country of birth of the respondent and his/her parents, and the number of children living in the household.