psychotools (0.5-0)

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Psychometric Modeling Infrastructure.

http://cran.r-project.org/web/packages/psychotools

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".

Maintainer: Achim Zeileis
Author(s): Achim Zeileis [aut, cre] (<https://orcid.org/0000-0003-0918-3766>), Carolin Strobl [aut], Florian Wickelmaier [aut], Basil Komboz [aut], Julia Kopf [aut], Lennart Schneider [aut], Rudolf Debelak [aut]

License: GPL-2 | GPL-3

Uses: multcomp, sandwich, Formula, mirt, likert
Reverse depends: benchmark, psychomix, psychotree, RM.weights
Reverse suggests: model4you, palmtree, partykit, sirt, tmt
Reverse enhances: qvcalc

Released 7 months ago.


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