study examined the effectiveness of school-based intervention programs in reducing aggression among children and adolescents. A comprehensive search
Subject Areas : Educational Science
1 -
Keywords: Meta-analysis, school-based programs, aggression, children, adolescents,
Abstract :
The present study examined the effectiveness of school-based intervention programs in reducing aggression among children and adolescents. A comprehensive search was conducted across 12 electronic databases. Ultimately, 17 studies were selected, and meta-analyses were performed using a random-effects model in RevMan software. The results indicate that existing school-based programs have a significant impact on reducing aggression (standardized mean difference = -0.35, 95% confidence interval [-0.53, -0.18], Z = 3.92, p < .001). Furthermore, subgroup analyses revealed that interventions designed based on theoretical frameworks, utilizing a randomized controlled trial (RCT) design, or having shorter session durations (below 45 minutes) were more effective in reducing aggressive behaviors compared to interventions lacking a theoretical basis, employing a quasi-experimental design, or having longer session durations (above 45 minutes). This systematic review offers implications for enhancing school-based interventions, including designing programs with theoretical guidance, implementing RCT designs, and limiting session durations.
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