The YSR (Achenbach, 1991c) is a self-report version of the widely used Child Behavior Checklist (Achenbach, 1991b). The questionnaire is designed for 11- to 18-year-olds to rate their own competencies and problems in a standardized format. As with the Child Behavior Checklist, the YSR yields broadband continuous dimensions of internalizing and externalizing symptoms. Syndrome subscales of interest in the current investigation included anxious/depressed symptoms, withdrawal, somatic complaints, aggressive, and delinquency. The YSR was normed on a representative US sample of 1,719 youth, aged 11 to 18 years. The YSR has acceptable reliability and validity (Achenbach, 1991c).
