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Application of IRT fixed parameter calibration to multiple-group test data

Title
Application of IRT fixed parameter calibration to multiple-group test data
Author
김성훈
Keywords
LONG-TERM SUSTAINABILITY; ITEM PARAMETERS
Issue Date
2019-10
Publisher
ROUTLEDGE JOURNALS
Citation
APPLIED MEASUREMENT IN EDUCATION, v. 32, no. 4, Page. 310-324
Abstract
In applications of item response theory (IRT), fixed parameter calibration (FPC) has been used to estimate the item parameters of a new test form on the existing ability scale of an item pool. The present paper presents an application of FPC to multiple examinee groups test data that are linked to the item pool via anchor items, and investigates the performance of FPC relative to an alternative approach, namely independent 0-1 calibration and scale linking. Two designs for linking to the pool are proposed that involve multiple groups and test forms, for which multiple-group FPC can be effectively used. A real-data study shows that the multiple-group FPC method performs similarly to the alternative method in estimating ability distributions and new item parameters on the scale of the item pool. In addition, a simulation study shows that the multiple-group FPC method performs nearly equally to or better than the alternative method in recovering the underlying ability distributions and the new item parameters.
URI
https://www.tandfonline.com/doi/full/10.1080/08957347.2019.1660344https://repository.hanyang.ac.kr/handle/20.500.11754/153771
ISSN
0895-7347; 1532-4818
DOI
10.1080/08957347.2019.1660344
Appears in Collections:
COLLEGE OF EDUCATION[S](사범대학) > EDUCATION(교육학과) > Articles
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