The initial chapters review the terms ethnicity and ethnic identify and their use in drug abuse research, with emphasis on specific problems and challenges that confront researchers who study drug abuse in minority communities. Subsequent chapters focus on drug use prevalence rates and observed racial and ethnic differences in adolescent drug use. Additional papers consider drug abuse causes and causal models, with emphasis on the concepts of risk and protective factors and the implications for prevention. Further chapters analyze a variety of models of drug abuse prevention in settings ranging from homes and schools to communities and homeless shelters. Other papers focus on methods of strengthening families to prevent drug use by multiethnic youth. Tables, figures, chapter reference lists, name and subject indexes, and author biographies