Youth violence is of public health and social concern. A South African cluster randomized trial (434 grade 10 students, 16 schools), used the Integrated Model for Behavior Change conceptual framework to implement a 20 module classroom-based intervention program. The study contributes to the literature and used a strong analytical technique since mixed effects linear regression assessed the impact of the intervention on physical violence endpoints and other socioeconomic confounders/factors. The intervention reduced students' experiencing physical violence compared to controls and social pressure for this, yet no differences were found for hitting others. Our results support findings that school programs against violence can reduce students' experience of physical violence, but translation of these findings to reduce the actual hitting of others may need further approaches and/or more time.

中文翻译：

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减少夸祖鲁-纳塔尔省高中生的身体攻击行为：一项集群随机试验。

青年暴力是公共卫生和社会关注的问题。南非的一项集群随机试验（434名10年级学生，16所学校）使用了行为改变综合模型概念框架来实施20个模块的基于课堂的干预计划。该研究为文献做出了贡献，并使用了一种强大的分析技术，因为混合效应线性回归评估了干预措施对人身暴力终点和其他社会经济混杂因素的影响。与控制和社会压力相比，这种干预减少了学生遭受的身体暴力，但是没有发现打人的差异。我们的结果支持以下发现：学校针对暴力的计划可以减少学生遭受身体暴力的经历，