Modeling Skipped and Not-Reached Items Using IRTrees

Autor/inn/en	Debeer, Dries; Janssen, Rianne; De Boeck, Paul
Titel	Modeling Skipped and Not-Reached Items Using IRTrees
Quelle	In: Journal of Educational Measurement, 54 (2017) 3, S.333-363 (31 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0022-0655
Schlagwörter	Item Response Theory; Test Items; Responses; Testing Problems; Models; Statistical Analysis; Computer Software; Simulation; Robustness (Statistics); Response Style (Tests); Reading Tests; Achievement Tests; Foreign Countries; International Assessment; Secondary School Students; Program for International Student Assessment + Suchen Sie Ihr Suchwort? Item-Response-Theorie; Test content; Testaufgabe; Analogiemodell; Statistische Analyse; Simulation program; Simulationsprogramm; Widerstandsfähigkeit; Antwortverhalten; Lesetest; Achievement test; Achievement; Testing; Test; Tests; Leistungsbeurteilung; Leistungsüberprüfung; Leistung; Testdurchführung; Testen; Ausland; Sekundarschüler
Abstract	When dealing with missing responses, two types of omissions can be discerned: items can be skipped or not reached by the test taker. When the occurrence of these omissions is related to the proficiency process the missingness is nonignorable. The purpose of this article is to present a tree-based IRT framework for modeling responses and omissions jointly, taking into account that test takers as well as items can contribute to the two types of omissions. The proposed framework covers several existing models for missing responses, and many IRTree models can be estimated using standard statistical software. Further, simulated data is used to show that ignoring missing responses is less robust than often considered. Finally, as an illustration of its applicability, the IRTree approach is applied to data from the 2009 PISA reading assessment. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01