标题： 每日锻炼时间对学生学业成绩的影响：基于CEPS数据的实证分析 显示英文标题

标题： Effects of Daily Exercise Time on the Academic Performance of Students: An Empirical Analysis Based on CEPS Data

摘要： 本文探讨了每天锻炼时间对中国初中生学业成绩的影响，试图从提高学生考试成绩的角度找出最适合学生的每日锻炼时间。通过将每天锻炼时间分为五个部分，构建一个分类变量纳入线性回归模型，并使用另一个模型绘制直观图表，我发现每天在体育活动上花费太多或太少的时间都会对学生的学业成绩产生不利影响，且不同性别、年级、城市规模和学校类型的影响存在差异。本文的研究结果对研究、学校健康和教育政策以及体育和一般教育实践具有意义。结果还为学生、家长和教师提供了建议。 显示英文摘要

摘要： This paper examines the effects of daily exercise time on the academic performance of junior high school students in China, with an attempt to figure out the most appropriate daily exercise time for students from the perspective of improving students' test scores. By dividing the daily exercise time into five sections to construct a categorical variable in a linear regression model as well as using another model to draw intuitive figures, I find that spending both too little and too much time on physical activity every day would have adverse impacts on students' academic performance, with differences existing in the impacts by gender, grade, city scale, and location type of the school. The findings of this paper carry implications for research, school health and education policy and physical and general education practice. The results also provide recommendations for students, parents and teachers.