Application of IRT Fixed Parameter Calibration to Multiple-Group Test Data

Autor/inn/en	Kim, Seonghoon; Kolen, Michael J.
Titel	Application of IRT Fixed Parameter Calibration to Multiple-Group Test Data
Quelle	In: Applied Measurement in Education, 32 (2019) 4, S.310-324 (15 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0895-7347
DOI	10.1080/08957347.2019.1660344
Schlagwörter	Item Response Theory; Item Banks; Test Items; Computation; Ability; Statistical Analysis; Multiple Choice Tests + Suchen Sie Ihr Suchwort? Item-Response-Theorie; Test content; Testaufgabe; Fähigkeit; Fertigkeit; Statistische Analyse; Multiple choice examinations; Multiple-choice tests, Multiple-choice examinations; Multiple-Choice-Verfahren
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. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01