Psychometric Consequences of Subpopulation Item Parameter Drift

Autor/in	Huggins-Manley, Anne Corinne
Titel	Psychometric Consequences of Subpopulation Item Parameter Drift
Quelle	In: Educational and Psychological Measurement, 77 (2017) 1, S.143-164 (22 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0013-1644
DOI	10.1177/0013164416643369
Schlagwörter	Psychometrics; Test Items; Item Response Theory; Hypothesis Testing; Test Bias; Scaling; Item Analysis; Simulation; Statistical Analysis; Evaluation Methods; Equated Scores; Achievement Tests; Standardized Tests; State Standards; Grade 4; Florida; Florida Comprehensive Assessment Test + Suchen Sie Ihr Suchwort? Psychometry; Psychometrie; Test content; Testaufgabe; Item-Response-Theorie; Hypothesenprüfung; Hypothesentest; Testkritik; Scale construction; Skalenkonstruktion; Itemanalyse; Simulation program; Simulationsprogramm; Statistische Analyse; Achievement test; Achievement; Testing; Test; Tests; Leistungsbeurteilung; Leistungsüberprüfung; Leistung; Testdurchführung; Testen; Standadised tests; Standardisierter Test; School year 04; 4. Schuljahr; Schuljahr 04
Abstract	This study defines subpopulation item parameter drift (SIPD) as a change in item parameters over time that is dependent on subpopulations of examinees, and hypothesizes that the presence of SIPD in anchor items is associated with bias and/or lack of invariance in three psychometric outcomes. Results show that SIPD in anchor items is associated with a lack of invariance in dimensionality structure of an anchor test, a lack of invariance in scaling coefficients across subpopulations, and a lack of invariance in ability estimates. It is demonstrated that these effects go beyond what can be understood from item parameter drift or differential item functioning. (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01