Cdate: Updating the Effectiveness of Correctional Treatment 25 Years Later

Correctional Drug Abuse Treatment Effectiveness (CDATE) will assemble and annotate all evaluation research studies on rehabilitation programs for offenders, drug abusing and non-drug abusing alike, conducted since 1968, i.e., since the studies reported by Lipton, Martinson and Wilks in The Effectiveness of Correctional Treatment: A Survey of Treatment Evaluation Studies (1975). This three-year project also will conduct a comprehensive detailed review of such studies in all levels of criminal justice custody. It will seek out all credible evaluation studies of treatment of offenders from all countries, examine and assemble them to inform policy and practice in the most meaningful way. This will include performing, a variety of analyses including meta-analyses comparing the effect of each treatment on each of the outcome variables and assessing the degree to which a variety of program and client characteristics have effects on outcomes. The original survey, The Effectiveness of Correctional Treatment, which covered the period 1945 to 1967, will be updated, and the questions "What works? with whom? under what circumstances?" will be addressed for all offenders, and especially for drug abusing offenders.