This Brief examines criminal careers by providing the most extensive and comprehensive investigation to date on the official offending, self-reported offending, and trajectories of offending of the Pittsburgh Youth Study (PYS) participants. The PYS is a longitudinal study, which was initiated in 1987, and involves repeated follow-ups on several community cohorts (starting in grades 1, 4, and 7) of inner-city boys in Pittsburgh, Pennsylvania. This Brief covers the Youngest and Oldest PYS cohorts (which had the most follow-up and most data available) from ages 10-30. It provides the most...