Affiliation:
1. Department of Sociology, Zhejiang University, Hangzhou, Zhejiang, China
2. Department of Sociology and Social Work, School of Sociology and Anthropology, Sun Yat-Sen University, Guangzhou, Guangdong, China
Abstract
Purpose: Present study investigated the effectiveness of school-based intervention programs on reducing aggression among children and adolescents. Method: A thorough search was carried out on 12 electronic databases. Seventeen studies were finalized, and meta-analyses were performed using a random effect model on RevMan software. Results: Findings reveal that existing school-based programs have a significant effect on reducing aggression (standardized mean differences = −0.35, 95% confidence interval [−0.53, −0.18], Z = 3.92, p < .001). Furthermore, subgroup analysis found that interventions with a theoretical basis, using a randomized controlled trial (RCT) design, or having a short duration of each session (below 45 min), were more effective than ones without a theoretical basis, using a quasi-experimental design, or having longer session duration (above 45 min) on reducing aggressive behaviors. Conclusion: This review provided implications to improve school-based interventions by developing designs based on the guidance of theories and RCT design, as well as limiting session duration.
Funder
Humanities and Social Science Fund of Ministry of Education of China
Subject
General Psychology,Sociology and Political Science,Social Sciences (miscellaneous)