教育测量中难度与区分度的计算方法

Research on calculating methods of difficulty and differentiation in education survey

摘要: 教育测量中,主、客观试题使用不同的计算方法,本文应用教学工具对难度和区分度的计算方法分别进行了统一性证明,并指出,可用相同的指标测量试卷的质量.

Abstract: In the education survey,different calculating methods are used for objective and subjective tests.This paper,using mathe methods,demonstrates respectively the calculating methods of the degree of difficulty and the degree of differentiation in terms of their unity,and it is pointed out that the same criteria can be used to estimate the quality of examination papers.