题组反应模式下的双因子模型和两层模型模拟比较  

Comparison of Testlets between Bifactor Model and Two-Tier Model

作　　者：李付鹏 宋吉祥 LI Fupeng;SONG Jixiang(Anhui Education Examinations Authority,Hefei 230022,China)

机构地区：[1]安徽省教育招生考试院命题中心,合肥230022

出　　处：《中国考试》2022年第9期47-53,共7页journal of China Examinations

基　　金：国家教育考试科研规划2019年度重点课题“新高考学业水平考试等级赋分模拟及相关问题研究”(GJK2019024)。

摘　　要：在测验开发中,以具有局部依赖性的题组形式存在的试题越来越多。双因子模型(bi⁃factormodel)和两层模型(two-tiermodel)是近年来基于试题局部依赖性提出的2种多维度模型。对2种模型进行模拟比较,结果显示:2种模型均可以处理具有局部依赖的试题多维度问题,并在局部依赖的识别、试题参数估计、被试特质分数估计方面具有一致性;在数据与模型的拟合方面,两层模型具有更好的拟合性;在运算的效率方面,两层模型的时间复杂性更高;在数据模拟的稳健性方面,两层模型在测验维度较高时可能存在无法收敛问题,双因子模型更加稳健。建议在测验结构相对简单时使用双因子模型,在测验结构较为复杂时使用两层模型。In test development,there are more and more items in the form of testlets with local dependence.The bifactor model and two-tier model are multi-dimensional models based on local dependence in recent years.The research results show that both models can deal with multi-dimensional items with local dependencies.They are consistent in the identification of local dependencies and the estimation of item parameters,test item parameters,and subject trait scores.In terms of data and model fitting,the two-tier model has a better fitting degree than the bifactor model;in terms of operational efficiency,the time complexity of the two-tier model is higher;in terms of the robustness of data simulation,the two-tier model may fail to converge when the test dimension is high.Therefore,it is recommended to use a bifactor model when the test structure is relatively simple and use a two-tier model when the test structure is more complex.

关 键 词：教育测验 题组局部依赖性 项目反应理论 测量模型 双因子模型 两层模型 

分 类 号：G405[文化科学—教育学原理]