The purpose of this paper is to describe the model used to evaluate the two-year Allegany Grant between the Peace Education Foundation and the Miami-Dade County Public Schools that focused on reducing school violence through implementing the "Peace Works" program. A mixed method design using simultaneous methodologies was employed. For the quantitative methods, an experimental design was used, with the school as the basis of randomization. The qualitative methods used interviews, focus groups, and observation. Data were collected on the macro- and micro-level using the theoretical framework of context, process, and outcomes. The results of the study are presented in terms of the strengths of the model and the limitations, based on examples from results of two years of evaluations. The model's strengths were the mixed methodology model, the theoretical framework, macro-level and micro-level approach, and the School Social Behavior Scales. Limitations included referral rate data and the conflict resolution training pre-test and post-test. Concluding statements suggest that the model can be used in evaluating other violence prevention programs. (Contains 2 figures.)