大学生身高影响因素实证分析

The empirical analysis of influencing factors of undergraduate stature

除了遗传因素外,其他因素对人的身高也有影响.设计了相应的调查问卷,按照随机原则在陕南抽取一定数量的在校大学生作为样本,研究他们的身高、居住地区、性别、饮食习惯、体育锻炼、睡眠与健康等情况并得到相应数据,采用方差分析的方法用SPSS对数据进行处理和分析,可以认为居住地区、性别、日均睡眠时间和体育锻炼情况等因素对大学生身高有显著影响;饮食习惯、睡眠习惯、成长地类别与健康情况等因素对大学生身高没有显著影响.把参加体育锻炼的情况和性别引入多因素方差分析模型中,模型的修正可决系数为0.547,如果把父母身高作为协变量引入模型中将会大大提高模型的解释能力.

Other factors also have influence upon the stature of people besides genetic factors. This paper designs the appropriate questionnaire; samples many undergraduates in Southern Shaanxi province based on randomized principle; studies their stature, resi- dence region, sex, diet habit, and many condition of physical exercise and sleeping, etc. to get the corresponding data; using the method of analysis of variance with SPSS to process data. The results show that residence region, sex, average hours of sleeping every day, and physical exercise status have significant influence upon undergraduate stature; but diet habit, sleeping habit, the kind of growth area, and health condition have not significant influence upon undergraduate stature; after putting physical exercise status and sex to multiple factor variance analysis, adjusted R squared of the model is 0. 547, and it will increase greatly if parent stature is put into the model as covariates.