This empirically based resource book for social scientists, practitioners, and policymakers interested in the field of delinquency prevention begins with five research papers on the early identification of at-risk children. This includes a longitudinal study of both the factors that predispose children to delinquency and mental health problems and the protective factors that contribute to their resiliency under high-risk conditions. The five research papers are followed by an overview and critique of the research projects. Research reports on intervention programs to prevent delinquent behavior focus on child abuse prevention with at-risk parents and children, stimulus-class determinants of mother-child coercive interchanges in multidistressed families, the effects of preschool intervention on crime and delinquency in adolescence and early adulthood, the impact of teaching techniques on delinquency, and cognitive-behavioral strategies in preventing and treating antisocial disorders in children and adolescents. Another paper assesses the effectiveness of these programs and primary prevention in general. The concluding paper examines the implications of the reported research for social policy and delinquency prevention. Chapter tables, references, subject index. For individual chapters, see NCJ 112841-53.