Hser, Yih-Ing; Huang, David; Chou, Chih-Ping; Anglin, … - In: Evaluation Review 31 (2007) 6, pp. 548-563
This study investigates trajectories of heroin use and subsequent consequences in a sample of 471 male heroin addicts who were admitted to the California Civil Addict Program in 1964-1965 and followed over 33 years. Applying a two-part growth mixture modeling strategy to heroin use level during...