Journal article
Comparison of Dichotomous and Polytomous Item Response Models in Equating Scores from Tests Composed of Testlets
Applied psychological measurement, Vol.25(4), pp.357-372
12/01/2001
DOI: 10.1177/01466210122032226
Abstract
The performance of two polytomous item response theory models was compared to that of the dichotomous three-parameter logistic model in the context of equating tests composed of testlets. For the polytomous models, testlet scores were used to eliminate the effect of the dependence among within-testlet items. Traditional equating methods were used as criteria for both. The equating methods based on polytomous models were found to produce results that more closely agreed with the results of traditional methods.
Details
- Title: Subtitle
- Comparison of Dichotomous and Polytomous Item Response Models in Equating Scores from Tests Composed of Testlets
- Creators
- Guemin Lee - CTB/McGraw HillMichael J. KolenDavid A FrisbieRobert D. Ankenmann - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Applied psychological measurement, Vol.25(4), pp.357-372
- Publisher
- Sage Publications
- DOI
- 10.1177/01466210122032226
- ISSN
- 0146-6216
- eISSN
- 1552-3497
- Language
- English
- Date published
- 12/01/2001
- Academic Unit
- Psychological and Quantitative Foundations
- Record Identifier
- 9984371091602771
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