华东师范大学学报(教育科学版) ›› 2023, Vol. 41 ›› Issue (12): 85-99.doi: 10.16382/j.cnki.1000-5560.2023.12.008

• 基本理论与基本问题 • 上一篇    下一篇

体重受同伴影响吗?——基于班级单位的实证考察

杜思慧1, 成刚2, 于文珊2   

  1. 1. 北京大学教育学院,北京 100871
    2. 北京师范大学教育学部,北京 100875
  • 出版日期:2023-12-01 发布日期:2023-11-27
  • 基金资助:
    全国教育科学“十三五”规划2020年度国家一般课题“新时代内涵发展视角下我国教育资源配置的优化研究”(BFA20071)

Is Weight Influenced by Peers: An Empirical Research Based on Classroom Units

Sihui Du1, Gang Cheng2, Wenshan Yu2   

  1. 1. Graduate School of Education, Peking University, Beiing 100871, China
    2. Faculty of Educaiton, Beijing Normal University, Beiing 100875, China
  • Online:2023-12-01 Published:2023-11-27

摘要:

体重同伴效应研究对于厘清异常体重发生过程、推进青少年体质健康发展的社会治理具有重要意义。基于社会互动理论,本研究综合使用2013—2014及2014—2015学年中国教育追踪调查(CEPS)数据,考察班级单位内的青少年体重同伴效应,并探讨其间的作用机制。研究发现,班级单位内存在显著的体重同伴效应,同伴平均身体质量指数、同伴超重肥胖率均显著正向影响个体身体质量指数。依次控制情境效应和关联效应、进行工具变量处理、开展稳健性检验后,该结果始终成立。进一步的作用机制分析表明,体重感知在体重同伴效应的发生过程中起调节作用,高估自身体重会显著削弱体重同伴效应,而低估自身体重不会对其产生影响。据此,证明学校情境中的青少年异常体重防治对策具有良好的外部性,提出合理配置健康教育资源、丰富健康教育工作内容、密切关注学生群体社交体验等对策建议。

关键词: 体重, 超重, 肥胖, 同伴效应, 班级

Abstract:

The research of peer effects on weight is important for clarifying the generating process of abnormal weight, as well as promoting the social governance of adolescent physical health development. Based on the social interaction theory and a combination of data from the 2013-2014 and 2014-2015 academic years of the China Education Panel Survey (CEPS), this study aimed to identify the weight peer effect of adolescents within classes and the underlying mechanisms. It was found that there was a weight peer effect within the class unit, with peer mean BMI and peer overweight and obesity rates significantly and positively affecting individual BMI. The results consistently held after controlling for contextual and corrlated effects, performing instrumental variable treatment, and conducting robustness tests. Further mechanism analysis showed that weight perception played a moderating role in the occurrence of the weight peer effect, and that overestimating one’s own weight significantly weakened the weight peer effect, while underestimating one’s own weight has no effect on it. Accordingly, it was demonstrated that the countermeasures against abnormal weight of adolescents in the school context have good externalities, and suggestions such as reasonable allocation of health education resources, enrichment of health education work content, and close attention to social experiences of student groups were proposed.

Key words: weight, overweight, obesity, peer effect, classroom