基于Rasch模型的高中数学测验命题特点分析

Characteristics Analysis of High School Mathematics Test Based on Rasch Model

Rasch分析具有参数客观性、等距性和被试独立性等特征在试卷特点和品质分析中独具特色,与经典测量理论互补,为教育考试数据分析提供了多元的视角。本研究以高中数学测验为例,从测量目标的单维性、试卷的拟合、题目的拟合、学生能力与题目难度的怀特图、题目参数的气泡图等内容开展了分析,并进一步探讨了结果应用中需要关注的问题。Rasch analysis has the characteristics of parameter objectivity, isometry and subject independence in the characteristics and quality analysis of the examination paper. It is complementary to the classical measurement theory, and provides a diversified perspective for the educational examination data analysis. Taking the high school mathematics test as an example, this paper analyzed the unidimensionality of the measurement target, the fitting of the test paper, the fitting of the questions, the white diagram of the students ability and the topic difficulty, and the bubble map of the topic parameters, and further discussed the problems to be paid attention to in the application of the results.