Psychosocial correlates of alcohol and drug use of adolescent students and adolescents in treatment.

The level of substance use by adolescent students and adolescents beginning treatment for alcohol and drug problems was related differentially to perceived psychological distress, self-concept, perceived parental environment, and negative events and behaviors caused by alcohol and drug use. These measures combined with selected sociodemographic variables to predict with a high degree of accuracy the level of substance use by the respondents.