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Response style analysis wioh threshold and multi-process IRT models, British Journal of Mathematical and Statistical Ps

Abstract

Two different item response theory model frameworks have been proposed for the assessment and control of response styles in rating data. According to one framework, response styles can be assessed by analysing threshold parameters in Rasch models for ordinal data and in mixture-distribution extensions of such models. A different framework is provided by multi-process item response tree models, which can be used to disentangle response processes that are related to the substantive traits and response tendencies elicited by the response scale. In this tutorial, the two approaches are reviewed, illustrated with an empirical data set of the two-dimensional ‘Personal Need for Structure’ construct, and compared in terms of multiple criteria. Mplus is used as a software framework for (mixed) polytomous Rasch models and item response tree models as well as for demonstrating how parsimonious model variants can be specified to test assumptions on the structure of response styles and attitude strength. Although both frameworks are shown to account for response styles, they differ on the quantitative criteria of model selection, practical aspects of model estimation, and conceptual issues of representing response styles as continuous and multidimensional sources of individual differences in psychological assessment.

Type

Article

Author(s)

Ulf Bockenholt, Thorsten Meiser

Date Published

2017

Citations

Bockenholt, Ulf, and Thorsten Meiser. 2017. Response style analysis wioh threshold and multi-process IRT models. British Journal of Mathematical and Statistical Ps. 70: 159-181.

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