影响留守学生成绩因素的统计方法 Statistical Analysis of the Factors about Academic Performance of the Left-Behind Children

留守学生，就是大量农村剩余劳动力外出务工，把家中子女独自留在农村老家，由家中老人或者亲友代为抚养和教育的孩子。对学生期末考试成绩采用列联表的统计方式进行分析处理，从而排除一些对留守学生成绩影响甚微的因素，找出对其产生主要影响的因素：父亲职业、和父母每个星期通话次数。 The children whose parents work outside the home and left them at home, we call them the left-behind children. They are taken care of by grandparents or other relatives. We use contingency table methods and SPSS statistical software to analyze data. We can find the influential factors: Father’s occupation and the number of calls per week with parents.