Source: (2001) Journal of Interpersonal Violence. 16(7):697-711.The Alternative to Violence Project (AVP), a nonviolence training program run for inmates by inmates, represents at attempt to combat institutional violence. The program provides alternatives to violent behavior; it decreases the rate of violence among and within the prison population and may translate back to the community on release. An impact evaluation of on AVP was conducted in a medium-security corrections facility in Maryland. Despite limitations, the results from this evaluation demonstrate a positive impact on anger and self-reported confrontation for inmates who completed a basic level conflict resolution as compared to those who did not. The power of the institutional environment, the need for continued intervention with offenders, and future directions for correctional-setting based evaluations are discussed.