The effectiveness of school-based anti-bullying programs: A meta-analytic review

Youth violence, including bullying and other serious violent behaviors, has received increased political and scientific attention over the past several decades. Although violent behavior among youth and in the schools has declined over the past decade, the victimization of children by other children in school settings remains a major issue of concern. In response, a number of prevention and intervention programs have been developed to reduce the incidence of bullying and violence in schools. This meta-analysis attempted to examine the effect of school-based anti-bullying programs. Results suggested a significant effect for anti-bullying programs (r = .12). However, this result seemed to be slightly influenced by publication bias and did not meet the adopted threshold for "practical significance." The effect for programs targeted specifically at at-risk youth was slightly better, but overall, anti-bullying programs produce little discernible effect on youth participants. Reasons that anti-bullying programs may produce little effective change are discussed.