Predicting Heavy Drug Use (60 pp.) (NCJ 208382) 2005

http://www.whitehousedrugpolicy.gov/publications/predict_drug_use/"Describes the movement of adolescents and young adults into and out of drug use, and also predicts heavy drug use. The data source is the Department of Labor's National Longitudinal Survey of Youth, which began in 1979 with a sample of 12,686 adolescents ages 14-21." (ONDCP)