The multidimensional assessment tool was developed against the background if the supra-f- study. As risk behaviour is not uniformly distributed among all young people, it is necessary to identify those young people who are in fact at risk.

The aim oft the multidimensional assessment is to detect and describe the distribution of various patterns of risk factors among a population of young people. It incorporates four parameters: Social background coverts he following life domains: parents or family (living without mother or father, parents separated or divorced, mother or father unknown or deceased); school (number of changes of school, number of school years repeated) or vocation (dropped out of apprenticeship); living conditions (number of moves, time spent in care/custody/psychiatric treatment).

Internal symptoms relate to depressive mood, anxiety and suicidality.

External behaviour comprises five different areas: aggressive/antisocial behaviour, social problems, attention deficits and hyperactivity. In addition, delinquency is covered by a further questionnaire.

Substance use: The main substances considered are alcohol, cannabis and tobacco. For each substance, the following questions are asked: use (yes/no); if yes, since when (lifetime prevalence); and use in the last 30 days. In addition, a list of other, less frequently used, substances is also presented.