学生视力健康状况会影响学业成绩吗——基于全国十省市的调查数据

Does Students’Vision Health Affect Their Academic Performance?--Evidence from Investigation Data in Ten Provinces in China

基于全国疫情期间高中在线学习状况调查数据,采用倾向得分匹配法和中介模型,探究学生视力健康状况对学业成绩的影响。发现,学生学业负担过重会危害视力健康,作业时间较多、运动时间和睡眠时间较少均会导致学生近视。倾向得分匹配法发现,学生视力健康状况对学业成绩的影响并不显著。通过多重中介模型显示,视力健康状况在家庭背景对学业成绩的影响过程中没有显著的中介效应,而时间配置,尤其是作业时间、睡眠时间和运动时间存在显著的中介效应。可见,通过牺牲学生视力健康以提高学业成绩的方式并不可取,增加运动和睡眠时间则有助于提高学业成绩并改善学生视力。因此,需要加强视力健康宣传力度,构建家校社联动预防机制;重视青少年近视防控工作,建立全生命周期的眼健康系统;落实中小学生减负措施,合理安排学习和闲暇时间。

Based on the national large-scale baseline survey data,using the method of propensity score matching and mediation model,this study explores the impact of students'visual health on academic performance.Excessive academic burden will endanger the health of students'vision.More time for homework,less time for exercise and sleep will cause myopia.There is no significant effect of myopia on academic achievement grade.The influence of family background on academic achievement is mainly through time allocation,especially homework,sleep and exercise time,rather than vision health.It is not advisable to improve students'academic performance by sacrificing their visual health.Increasing exercise and sleep time can improve students'academic performance and eyesight.Therefore,it is necessary to continue to strengthen the publicity of vision health,construction of family school community linkage prevention mechanism,improve the awareness of prevention and control of students and parents,establish a life cycle eye health system,implement the requirements of burden reduction,and allocate time reasonably.