双因子项目反应模型在研究生招生考试质量分析中的应用

The Application of Bi-factor Item Response Model in the Quality Analysis of Postgraduate Entrance Examination

研究生招生考试中学科专业能力的考查,主要采用的是“大综合”形式的试卷,即将学科专业基础课程的知识集中在一张试卷上进行考查。“大综合”的试卷形式大大提高了试卷的命制难度,也对试题质量提出了极高的要求。针对2022年全国硕士研究生招生考试心理学专业基础科目的抽样作答数据,采用双因子项目反应模型对试题质量进行分析。研究显示,整套试卷命制基本符合“大综合”试卷的命制要求,其中心理学一般因子作为主要的考查维度,具有良好的区分度;而特殊因子(课程因子)的表现存在差异。从能力密度曲线来看,实验心理学、心理统计与测量两个因子的选拔性功能更强。

The examination of professional ability in the postgraduate entrance examination mainly adopts the“big comprehensive”test paper,that is,the knowledge of basic professional courses is concentrated on one test paper.The form of“big comprehensive”test paper greatly improves the difficulty of making test paper,and also puts forward high requirements for the quality of items.In this study,the answering data of subjects in the psychology major of the postgraduate entrance examination in 2022 were taken as the research object,and the bi-factor item response model was used to analyze the quality of the items.The research showed that the test paper basically met the requirements of“big comprehensive”test paper,in which the psychological general ability factor,as the main examination content,had a good differentiation;However,there were differences in the performance of special factors(course factors).From the ability density curve,experimental psychology,statistics and measurement were more selective.