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Ordinal Regression Models in Psychology: A Tutorial
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- Paul-Christian Bürkner
- Department of Psychology, University of Münster
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- Matti Vuorre
- Department of Psychology, Columbia University
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Description
<jats:p> Ordinal variables, although extremely common in psychology, are almost exclusively analyzed with statistical models that falsely assume them to be metric. This practice can lead to distorted effect-size estimates, inflated error rates, and other problems. We argue for the application of ordinal models that make appropriate assumptions about the variables under study. In this Tutorial, we first explain the three major classes of ordinal models: the cumulative, sequential, and adjacent-category models. We then show how to fit ordinal models in a fully Bayesian framework with the R package brms, using data sets on opinions about stem-cell research and time courses of marriage. The appendices provide detailed mathematical derivations of the models and a discussion of censored ordinal models. Compared with metric models, ordinal models provide better theoretical interpretation and numerical inference from ordinal data, and we recommend their widespread adoption in psychology. </jats:p>
Journal
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- Advances in Methods and Practices in Psychological Science
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Advances in Methods and Practices in Psychological Science 2 (1), 77-101, 2019-02-25
SAGE Publications
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Details 詳細情報について
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- CRID
- 1360861709594235008
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- ISSN
- 25152467
- 25152459
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- Data Source
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- Crossref