Modeling Multiple Item Context Effects With Generalized Linear Mixed Models

Item context effects refer to the impact of features of a test on an examinee's item responses. These effects cannot be explained by the abilities measured by the test. Investigations typically focus on only a single type of item context effects, such as item position effects, or mode effects,...

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Veröffentlicht in:Frontiers in psychology Jg. 10; S. 248
Hauptverfasser: Rose, Norman, Nagy, Gabriel, Nagengast, Benjamin, Frey, Andreas, Becker, Michael
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Switzerland Frontiers Media S.A 25.02.2019
Schlagworte:
domain order effects
generalized linear mixed models
item context effects
item position effects
multidimensional item response theory
Psychology
item position effects
multidimensional item response theory
generalized linear mixed models
domain order effects
item context effects
ISSN:1664-1078, 1664-1078
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Zusammenfassung:Item context effects refer to the impact of features of a test on an examinee's item responses. These effects cannot be explained by the abilities measured by the test. Investigations typically focus on only a single type of item context effects, such as item position effects, or mode effects, thereby ignoring the fact that different item context effects might operate simultaneously. In this study, two different types of context effects were modeled simultaneously drawing on data from an item calibration study of a multidimensional computerized test ( = 1,632) assessing student competencies in mathematics, science, and reading. We present a generalized linear mixed model (GLMM) parameterization of the multidimensional Rasch model including (distinguishing between and ), , and the interactions between them. Results show that both types of context effects played a role, and that the moderating effect of domain orders was very strong. The findings have direct consequences for planning and applying mixed domain assessment designs.
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This article was submitted to Quantitative Psychology and Measurement, a section of the journal Frontiers in Psychology
Edited by: Holmes Finch, Ball State University, United States
Reviewed by: Anthony D. Albano, University of Nebraska System, United States; Maria Anna Donati, Università Degli Studi di Firenze, Italy
ISSN:1664-1078
1664-1078
DOI:10.3389/fpsyg.2019.00248