单选题:通过检测来评定学生的学业成绩是中学常用的评价方法,在一个测验中,衡量是否达到测验目的的程度,即是否测出了所要测量的东西的

题目内容:

通过检测来评定学生的学业成绩是中学常用的评价方法,在一个测验中,衡量是否达到测验目的的程度,即是否测出了所要测量的东西的指标是(  )。 A.信度
B.效度
C.难易度
D.区分度

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