摘要
等值标准误是判断等值误差的一个非常有效的指标。本文用Delta方法分析了几种常见等值方法的标准误随样本容量变化的情况,证实了增加样本容量可以减小两个测验间等效分数的标准误,进而可以提高等值的精确度;同时,也表明了Delta方法计算每个等效分数点等值标准误的优势,可以方便地实现多种等值方法标准误的比较。
Equivalent standard error is an effective indicator of the equivalent error. In this paper,the Delta method is used to analyze the standard error of several common equivalence methods with the change of sample size.It is proved that the increase of sample size can reduce the standard error of the equivalent scores between two tests,which can improve the accuracy of equivalent value. At the same time,it can be seen that the Delta method has the advantage of calculating the equivalent standard error of each equivalent fraction point,and it is easy to compare the
作者
宋吉祥
李付鹏
杜海燕
Song Jixiang;Li Fupeng;Du Haiyan(Anhui Education Examinations Authority,Hefei,Anhui,23002)
出处
《考试研究》
2018年第6期66-73,共8页
Examinations Research
基金
2017年度国家教育考试科研规划课题(编号:GJK2017029)的资助
关键词
标准误
Delta方法
等值
Standard Error
the Delta Method
Equivalence
