Dimitrov Dimiter M, Raykov Tenko
Multivariate Behav Res. 2003 Jan 1;38(1):1-23. doi: 10.1207/S15327906MBR3801_1.
Determining sources of item difficulty and using them for selection or development of test items is a bridging task of psychometrics and cognitive psychology. A key problem in this task is the validation of hypothesized cognitive operations required for correct solution of test items. In previous research, the problem has been addressed frequently via use of the linear logistic test model for prediction of item difficulties. The validation procedure discussed in this article is alternatively based on structural equation modeling of cognitive subordination relationships between test items. The method is illustrated using scores of ninth graders on an algebra test where the structural equation model fit supports the cognitive model. Results obtained with the linear logistic test model for the algebra test are also used for comparative purposes.
确定题目难度来源并将其用于题目选择或开发是心理测量学和认知心理学的一项衔接任务。这项任务中的一个关键问题是对正确解答测试题目所需的假设认知操作进行验证。在以往研究中，该问题常通过使用线性逻辑测试模型来预测题目难度加以解决。本文所讨论的验证程序则基于测试题目之间认知从属关系的结构方程模型。通过九年级学生代数测试成绩对该方法进行了说明，其中结构方程模型拟合支持了认知模型。代数测试的线性逻辑测试模型所得结果也用于比较目的。
