Literaturnachweis - Detailanzeige
Autor/in | DeMars, Christine E. |
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Titel | Revised Parallel Analysis with Nonnormal Ability and a Guessing Parameter |
Quelle | In: Educational and Psychological Measurement, 79 (2019) 1, S.151-169 (19 Seiten)Infoseite zur Zeitschrift
PDF als Volltext |
Zusatzinformation | ORCID (DeMars, Christine E.) |
Sprache | englisch |
Dokumenttyp | gedruckt; online; Zeitschriftenaufsatz |
ISSN | 0013-1644 |
DOI | 10.1177/0013164418767009 |
Schlagwörter | Item Analysis; Models; Error of Measurement; Item Response Theory; Accuracy; Decision Making |
Abstract | Previous work showing that revised parallel analysis can be effective with dichotomous items has used a two-parameter model and normally distributed abilities. In this study, both two- and three-parameter models were used with normally distributed and skewed ability distributions. Relatively minor skew and kurtosis in the underlying ability distribution had almost no effect on Type I error for unidimensional data and reduced power for two-dimensional data slightly with smaller sample sizes of 400. Using a two-parameter model on three-parameter data produced dramatically increased rejection rates for the unidimensional data. Using the correct three-parameter model reduced the unidimensional rejection rates but yielded lower power than the two-parameter data in some conditions. (As Provided). |
Anmerkungen | SAGE Publications. 2455 Teller Road, Thousand Oaks, CA 91320. Tel: 800-818-7243; Tel: 805-499-9774; Fax: 800-583-2665; e-mail: journals@sagepub.com; Web site: http://sagepub.com |
Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
Update | 2020/1/01 |