List of applied questionnaires
| Assessed domains and subdomains | Questionnaire | Completed by* |
| Information on child | ||
| Information on health and academic outcome | Detailed information on schooling, health concerns and leisure activities | Parents |
| Behavioural screening: emotional symptoms, conduct problems, hyperactivity/inattention, peer relationship problems, prosocial behaviour | Strength and Difficulty Questionnaire55 | Parents |
| Autistic traits screening | Social and Communication Disorder Checklist56 | Parents |
| Health-related quality of life: physical, psychological well-being, autonomy and parent relation, peers and social support, school environment | Kidscreen-2757 | Parents and children |
| Information on parents | ||
| Executive function abilities relevant for everyday life: inhibit, shift, emotional control, self-monitor, initiate, working memory, plan/organise, task monitor and organisation of materials | Behaviour Rating Inventory of Executive Functions-Adult version58 | Parents |
| Physical and mental health: vitality, physical functioning, bodily pain, general health perceptions, physical role functioning, emotional role functioning, social role functioning, mental health | Short Form Health Survey59 | Parents |
| Information on family | ||
| Family socioeconomic status | Detailed information on for example, parental age, nationality, marital status, first language, maternal and paternal education and occupation, current living arrangements and financial situation | Parents |
| Quality of family environment: family cohesion, expressiveness, conflict | Family Relationship Index60 | Parents |
| Perceived social support for the family | Social Support Questionnaire (F-SozU-14)61 | Parents |
| Parenting: positive parenting behaviour, involvement, (poor) monitoring, inconsistent discipline, authoritarian parenting, responsible parenting, corporal punishment | German version of the Alabama parenting Questionnaire for elementary school children (DEAPQ-EL-GS)62 | Parents |
| Quality of parent–child interaction: cohesion, identification, autonomy, conflicts, rejection/neglect, punishment, emotional burden, fears/overprotection, aid | Parental-Representation-Screening-Questionnaire (Elternbild-Fragebogen, EBF-KJ)63 | Children |
| Critical life events | 12-item list of critical life events | Parents |
*Questionnaires are completed by at least one parent.