This book examines violence prevention programs for middle schools and their findings after implementation. The U.S. Department of Education's Office of Safe and Drug-Free Schools (OSDFS) administers a variety of state and national programs under the Safe and Drug-Free Schools and Communities Act (SDFSCA) that are focused on efforts to develop and maintain safe, disciplined, and drug-free schools. Drug and violence prevention activities under these programs are carried out in elementary and secondary schools, as well as in institutions of higher education. While there is now a lengthy set of school-based drug prevention curricula that have been evaluated using rigorous designs, much less evidence is available concerning effective violence prevention strategies in school settings. The need for evidence-based prevention programs is particularly critical for middle schools, whose students experience the highest rate of school-based violence relative to students in other grades.