Some Alternatives to Sympson-Hetter Item-Exposure Control in Computerized Adaptive Testing
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A Formal Characterization of and Some Alternatives to Sympson-Hetter Item-Exposure Control in Computerized Adaptive Testing (CT 02-05) (PDF)
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For computerized adaptive testing (CAT) programs that adopt three-parameter logistic model, high discriminative items generally provide more information for trait estimation. The information based item selection methods in administering computerized adaptive tests (CATs) tend to choose the item that provides maximum information at an examinee’s estimated trait level. As a result, these methods ...
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The purpose of the current study was to generalize the use of the a-stratified method with b blocking (Chang, Qian, & Ying, 2001; denoted STR_B) to computerized adaptive testing (CAT) with the generalized partial credit model (Muraki, 1992). Chang et al. (2001) showed that STR_B performs well in reducing highly discriminating items' exposure rates and increasing lower a items' usage while maint...
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تاریخ انتشار 2012