Taking Stock in Delinquency is the comprehensive synthesis of the empirical findings of seven important ongoing longitudinal studies of delinquency. The seven projects included in this volume represent much of the diversity found in individual-based panel studies of antisocial behavior. Individually and collectively, the results of these investigations have been published in a wide range of disciplinary outlets, thus making it difficult to identify common themes and general principles. This volume intends to provide a comprehensive and unified picture of empirical results, both within these studies and across them. One of the fundamental purposes of Taking Stock in Delinquency is to examine the extent to which these studies answer the basic question of the origins of delinquent and criminal careers despite their varying guiding theories, methods, and settings. Taking Stock in Delinquency is an important resource for criminologists, psychologists, sociologists, and upper-level students on juvenile delinquency, criminology, developmental psychology, and deviant behavior.