CAJ | 학술논문

通常0-1项目的认知诊断模型中均假设回答各个项目是相互独立的,但一些实际测试中该假设可能不满足,比如2个项目的背景材料相同,后面的项目的回答会受前面项目反应的影响。本文将项目之间的相关信息引入 DI-NA模型,提出了 E-DINA模型,也为解决多级评分问题提供一种有效途径；模拟结果表明,如果项目之间有相关关系, E-DINA模型的模式判准率和属性判准率明显高于不考虑项目之间相关关系的 DINA 模型,而且具有相关性的项目越多,2个模型的模式判准率的差别越大。
통상0-1항목적인지진단모형중균가설회답각개항목시상호독립적,단일사실제측시중해가설가능불만족,비여2개항목적배경재료상동,후면적항목적회답회수전면항목반응적영향。본문장항목지간적상관신식인입 DI-NA모형,제출료 E-DINA모형,야위해결다급평분문제제공일충유효도경；모의결과표명,여과항목지간유상관관계, E-DINA모형적모식판준솔화속성판준솔명현고우불고필항목지간상관관계적 DINA 모형,이차구유상관성적항목월다,2개모형적모식판준솔적차별월대。
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.