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Direct and Inverse Problems of Item Pool Design for Computerized Adaptive Testing

机译:计算机自适应测试项目库设计的正反问题

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摘要

The recent literature on computerized adaptive testing ( CAT) has developed methods for creating CAT item pools from a large master pool. Each CAT pool is designed as a set of nonoverlapping forms reflecting the skill levels of an assumed population of test takers. This article presents a Monte Carlo method to obtain these CAT pools and discusses its advantages over existing methods. Also, a new problem is considered that finds a population ability density function best matching the master pool. An analysis of the solution to this new problem provides testing organizations with effective guidance for maintaining their master pools. Computer experiments with a pool of Law School Admission Test items and its assembly constraints are presented.
机译:关于计算机自适应测试(CAT)的最新文献已经开发了从大型主库创建CAT项目库的方法。每个CAT池均设计为一组非重叠形式,反映了假定的应试者的技能水平。本文介绍了一种用于获取这些CAT池的Monte Carlo方法,并讨论了其相对于现有方法的优势。另外,考虑了一个新问题,即发现与主库最匹配的人口能力密度函数。对这个新问题的解决方案的分析为测试组织提供了维护其主池的有效指导。介绍了一组法学院入学考试项目及其组装约束条件的计算机实验。

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