Comparison of CAT Item Selection Criteria for Polytomous Items.

Comparison of CAT Item Selection Criteria for Polytomous Items.
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DOI:
10.1177/0146621608327801
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发表时间:
2009-09-01
影响因子:
1.2
通讯作者:
Swartz RJ
Swartz RJ
中科院分区:
心理学4区
文献类型:
--
作者:
Choi SW;Swartz RJ

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题目选择是计算机化自适应测试(CAT)的核心环节。一些研究评估了新的和经典的选择方法;然而,少数将此类方法应用于多分类项目的研究报告了相互矛盾的结果。为了澄清这些差异,并进一步研究选择方法的属性,六种不同的选择方法进行了系统的比较。结果表明,更复杂的选择标准没有明显的好处,并显示一种方法以前被认为是优越的最大预期后验加权信息(MEPWI),是数学上等效于一个更简单的方法,最大后验加权信息(MPWI)。
Item selection is a core component in computerized adaptive testing (CAT). Several studies have evaluated new and classical selection methods; however, the few that have applied such methods to the use of polytomous items have reported conflicting results. To clarify these discrepancies and further investigate selection method properties, six different selection methods are compared systematically. The results showed no clear benefit from more sophisticated selection criteria and showed one method previously believed to be superior—the maximum expected posterior weighted information (MEPWI)—to be mathematically equivalent to a simpler method, the maximum posterior weighted information (MPWI).
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