A Combined IRT and SEM Approach for Individual-Level Assessment in Test-Retest Studies

Autor/in	Ferrando, Pere J.
Titel	A Combined IRT and SEM Approach for Individual-Level Assessment in Test-Retest Studies
Quelle	In: Psicologica: International Journal of Methodology and Experimental Psychology, 36 (2015) 2, S.391-417 (27 Seiten) PDF als Volltext kostenfreie Datei Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0211-2159
Schlagwörter	Item Response Theory; Structural Equation Models; Goodness of Fit; Statistical Analysis; Computation; Change; Evaluation + Suchen Sie Ihr Suchwort? Item-Response-Theorie; Statistische Analyse; Wandel; Evaluierung
Abstract	The standard two-wave multiple-indicator model (2WMIM) commonly used to analyze test-retest data provides information at both the group and item level. Furthermore, when applied to binary and graded item responses, it is related to well-known item response theory (IRT) models. In this article the IRT-2WMIM relations are used to obtain additional information for each individual respondent. Procedures are proposed for (a) obtaining individual estimates of trait levels and amount of change, and (b) assessing whether the main assumptions on which these estimates are based are met. The procedures are organized in a comprehensive approach that can be used with binary, graded, and continuous responses. The relevance of the proposal is discussed and guidelines are given on how to use the approach in applied research. Finally, the approach is illustrated with an empirical data set. It worked well and provided meaningful information. (As Provided).
Anmerkungen	University of Valencia. Dept. Metodologia, Facultad de Psicologia, Avda. Blasco Ibanez 21, 46010 Valencia, Spain. Tel: +34-96-386-4100; Web site: http://www.uv.es/revispsi/
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01