北京师范大学学报（自然科学版）Issue(4)：331-336,6.
项目之间具有相关性的认知诊断模型
A COGNITIVE DIAGNOSTIC MODEL CONCERNING ITEM CORRELATIONS
摘要
Abstract
Existing dichotomous cognitive diagnostic models are all given assuming all items are independent.In practice,however,this assumption may not be true.For example,if two items are under the same circumstances,the latter item will have high correlation with the former one.In order to solve this kind of item-dependency problem,this paper proposed an enhanced model,the E-DINA model,which is constructed by adding item dependency of the DINA model. This is also an effective way to solve poly-chotomous problems.Simulations show that estimation accuracy,seen from AAMR and CPCR distribution,is much higher using E-DINA model than using DINA model if item dependency is considered.With increasing items with item dependency in the simulation,the improvement becomes progressively greater.关键词
认知诊断模型/DINA模型/Q矩阵/多级评分Key words
cognitive diagnostic model/DINA model/Q-matrix/polytomous scoring引用本文复制引用
张淑梅,包钰,保佳,李姗姗..项目之间具有相关性的认知诊断模型[J].北京师范大学学报（自然科学版）,2014,(4):331-336,6.基金项目
国家自然科学基金资助项目(11171029) （11171029）
