The structural model used represented the youths' socioeconomic status, parental presence in the household, family psychosocial problems, family contact with the criminal justice system, sexual victimization, and physical abuse as interrelated experiences. Autoregressive relationships are hypothesized to exist between alcohol and other drug use and delinquency over time. Overall, the hypothesized relationships were supported by the data, particularly with regard to the subjects' use of marijuana and hashish. While few differences were found between the male and female youths in regard to various variables, there were some differences between black and white male youths. The results indicate that family problems and youths' early abuse experiences should play a more prominent role in theory and research on drug use and other delinquent behavior. 2 tables, 4 figures, and 53 references