This innovative and timely work explores how the developmental criminology paradigm can be applied to understandings beyond criminal careers, to the development of more general antisocial behavior. Importantly, the rich data set from 50-years of cross sectional and longitudinal studies provides replication amongst samples, genders, generations and phases in the life span, from cohorts born in the 1960s, 1970s, 1980s, and 1990s. This work also provides a rich history about the development of the ¿Developmental Criminology¿ paradigm, drawing from developmental psychology, and life-course methodologies in Sociology. With a 50-year, multigenerational longitudinal dataset (the Montreal Two Sample Four Generational Cross sectionnal and Longitudinal Studies ¿MTSFGCLS) the author