Part I. Families, children, and delinquency -- The family as context for delinquency prevention : Demographic trends and political realities / Glenn C. Lowry -- Early precursors of frequent offending / David P. Farrington -- Biomedical problems in juvenile delinquency : Issues in diagnosis and treatment / Richard Barnum -- Part II. Promising interventions : Family training -- What policy makers and practitioners can learn from family studies of juvenile conduct problems and delinquency / Rolf Loeber -- Contingency management with oppositional children : Some critical teaching issues for parents / Robert G. Wahler -- Part III. Promising interventions : Preschool and school programs -- Can preschool programs help prevent delinquency? / Lawrence J. Schweinhart -- The implications of early intervention efforts for the primary prevention of juvenile delinquency / Edward Zigler and Nancy W. Hall -- Delinquency prevention through parent training : Results and issues from work in progress / J. David Hawkins...[et al.] -- Part IV. The family and public policy -- Giving the juvenile court a preschool education / Douglas J. Besharov -- The federal government and the family / Leslie Lenkowsky -- Delinquency prevention and labeling / Charles F. Wellford -- Multiproblem families and the community / Brigitte Berger -- Part V. Conclusion -- Strategic opportunities for delinquency prevention / James Q. Wilson.