RELIABILITY AND VALIDITY OF A GERMAN VERS ION OF THE YOUTH SELF-REPORT

The aim of the present study was to investigate certain aspects of the reliability and validity of a German version of the Youth Self-Report (total behavior problem score) and to establish norms. In a sample of 252 patients from various child and adolescent psychiatric services a nd in an unselected sample of 1343 students from nearby schools high c oefficients of internal consistency and split-half reliability (>0.9) were obtained. An additional 105 students were tested and then reteste d after 5 weeks and again the rank correlations were high (boys: 0.86; girls: 0.90). The patients had higher total problem scores than the n on-patients matched for age, sex, socioeconomic status, type of school and status as a foreigner. Patients with a diagnosis on axis 1 (psych iatric syndrome) or axis 5 (abnormal psychosocial situations) of the M ulti-axial Classification Scheme were more maladjusted (higher total b ehavior problem score) than those without such a diagnosis. As expecte d, the score for the inpatients (N=99) was higher than for the out-pat ients (N=153). Because of the encouraging results, which justify furth er use of the Youth Self-Report, norms for the total behavior problem score (T-scores, percentiles) were calculated separately for the boys (N=2085) and girls (N=2119) from the general population (10-17 years o f age).