Literaturnachweis - Detailanzeige
Autor/in | Doebler, Anna |
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Titel | The Problem of Bias in Person Parameter Estimation in Adaptive Testing |
Quelle | In: Applied Psychological Measurement, 36 (2012) 4, S.255-270 (16 Seiten)
PDF als Volltext |
Sprache | englisch |
Dokumenttyp | gedruckt; online; Zeitschriftenaufsatz |
ISSN | 0146-6216 |
DOI | 10.1177/0146621612443304 |
Schlagwörter | Adaptive Testing; Computer Assisted Testing; Computation; Item Response Theory; Test Bias; Test Items; Error Patterns; Bayesian Statistics |
Abstract | It is shown that deviations of estimated from true values of item difficulty parameters, caused for example by item calibration errors, the neglect of randomness of item difficulty parameters, testlet effects, or rule-based item generation, can lead to systematic bias in point estimation of person parameters in the context of adaptive testing. This effect occurs even when the errors of the item difficulty parameters are themselves unbiased. Analytical calculations as well as simulation studies are discussed. (Contains 7 figures, 3 tables and 1 note.) (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 | 2017/4/10 |