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从经典测量理论和中考实践两个视角研究中考物理试题区分度与难度的关系,发现单凭控制试题难度难以实现对区分度的控制。通过题目得分率与物理总分关系的研究,探讨难度和区分度相同或相近题目局部区分功能的差异,探究中考试题难度和局部区分功能的设计方法及应用。
From the two perspectives of classical measurement theory and practice test, this paper studies the relationship between the degree of discrimination and the degree of difficulty of the physical examination in senior high school entrance examinations. It is found that it is difficult to control the degree of discrimination solely by the difficulty of controlling the test questions. Through the research on the relationship between the topic score rate and the physical total score, this paper discusses the differences of the local distinguishing functions of the same or similar topics with different degrees of difficulty and difference, and explores the design methods and applications of the difficulty of the middle school exam questions and the function of local distinguishing.