“率”是常用教育统计量之一,以往一些教育研究的资料中,常见以“率”间的比较结果来获得某些论据,用以论述或阐明某些观点,但在比较两个或多个频率指标时,如两组或多组研究对象内部的构成存在着明显的差别时,假如不进行校正处理,必然会产生错误,而造成结论的谬误。例表(1)所列的甲乙两县各年级组学生数及流生资料,如利用这一资料数据,以流生率为指标评价甲乙两县在巩固义务教育方面的情况。从总流生率看,甲县为32.67人╱千,高于乙县的26.53人 “Rate” is one of the commonly used educational statistics. In the past, some educational research materials commonly used the comparison result of “rate” to obtain some arguments to discuss or clarify some of the views. However, when comparing two or more When a frequency index, such as two or more groups of subjects within the composition of the existence of significant differences, if not for correction, will inevitably produce errors, resulting in the fallacy of the conclusion. For example, the number of students in each grade group in A and B counties as listed in Table (1) and the data of their births are listed in table (1). By using this data, we can evaluate the compulsory education in both A and B counties by using the flow rate as an indicator. From the total outflow rate of view, County is 32.67 people ╱ thousand, higher than the 26.53 B County