Initiative Description: A bullying prevention program in one large, public elementary school in the United States. The program, which was developed based on a collaborative model between school personnel and university consultants, included modification of the school environment, education of students, and training of teachers.

Study Results: Among the younger children, a 40% reduction in the mean self-reported aggression and a 19% reduction in mean self-reported victimization were found. Among children in third through fifth grade, a 23% reduction in the mean reported victimization was observed, but no significant differences in aggression were found

Reference: Orpinas, P., Horne, A. M., & Staniszewski, D. (2003). School bullying: Changing the problem by changing the school. School Psychology Review,32(3), 431-444.

Level of Evidence: Good