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Journal of Classification
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24-12-2019

Cognitive Diagnostic Computerized Adaptive Testing for Polytomously Scored Items

Authors: Xuliang Gao, Daxun Wang, Yan Cai, Dongbo Tu

Published in: Journal of Classification | Issue 3/2020

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Abstract

Cognitive diagnostic computerized adaptive testing (CD-CAT) purports to combine the strengths of both CAT and cognitive diagnosis. Currently, large number of CD-CAT researches focus on the dichotomous data. In our knowledge, there are no researches on CD-CAT for polytomously scored items or data. However, polytomously scored items have been broadly used in a variety of tests for their advantages of providing more information about examinee, and fewer polytomous items can achieve the same precision compared with dichotomous items. Therefore, it is an interesting topic on CD-CAT with polytomously scored items, which need promote the research in polytomous cognitive diagnostic computerized adaptive testing (called PCD-CAT). This study aims to construct a framework of PCD-CAT, including the construction of the item bank, the item selection method, the parameter estimation, and the termination rule.
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Metadata
Title
Cognitive Diagnostic Computerized Adaptive Testing for Polytomously Scored Items
Authors
Xuliang Gao
Daxun Wang
Yan Cai
Dongbo Tu
Publication date
24-12-2019
Publisher
Springer US
Published in
Journal of Classification / Issue 3/2020
Print ISSN: 0176-4268
Electronic ISSN: 1432-1343
DOI
https://doi.org/10.1007/s00357-019-09357-x

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