The research in this article focused on the effectiveness of prison based treatment for incarcerated inmates at the Amity Prison in California using the Therapeutic Community (TC) treatment module. Participating inmates did so voluntarily; however, the inmate assigned to either the treatment group or the control group was random. The selected inmates had between 9-12 months remaining on their prison sentence. In addition to the treatment the inmates received in prison, once they were released from custody, those in the treatment group had the opportunity to continue to engage in residential treatment at an Amity Therapeutic Community aftercare center for an additionally 6-12 months of treatment.
The final sample of this study included 715
The final sample of this study included 715