Process Evaluation in Corrections-Based Substance Abuse Treatment
Prison overcrowding has fostered an interest in providing substance abuse treatment to inmates. Outcome evaluations to determine program effectiveness are viewed as essential. This paper argues that in order for a prison based substance abuse treatment outcome evaluation to achieve reliability and validity, a process evaluation is central. As part of the process evaluation, five groups within the correctional setting need to be considered: inmates, treatment staff, prison staff, prison administration, and the parole board. These five groups are discussed relative to three stages of development of substance abuse treatment in prison: program policy making, evolution, and viability.