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psychotools: Psychometric Modeling Infrastructure
Infrastructure for psychometric modeling such as data classes (for item response data and paired comparisons), basic model fitting functions (for Bradley-Terry, Rasch, parametric logistic IRT, generalized partial credit, rating scale, multinomial processing tree models), extractor functions for different types of parameters (item, person, threshold, discrimination, guessing, upper asymptotes), unified inference and visualizations, and various datasets for illustration. Intended as a common lightweight and efficient toolbox for psychometric modeling and a common building block for fitting psychometric mixture models in package "psychomix" and trees based on psychometric models in package "psychotree".
Getting started
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Package details |
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| Author | Achim Zeileis [aut, cre] (<https://orcid.org/0000-0003-0918-3766>), Carolin Strobl [aut] (<https://orcid.org/0000-0003-0952-3230>), Florian Wickelmaier [aut], Basil Komboz [aut], Julia Kopf [aut], Lennart Schneider [aut] (<https://orcid.org/0000-0003-4152-5308>), Rudolf Debelak [aut] (<https://orcid.org/0000-0001-8900-2106>) |
| Maintainer | Achim Zeileis <Achim.Zeileis@R-project.org> |
| License | GPL-2 | GPL-3 |
| Version | 0.7-4 |
| Package repository | View on CRAN |
| Installation |
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