psychomix: Psychometric Mixture Models

Psychometric mixture models based on 'flexmix' infrastructure. At the moment Rasch mixture models with different parameterizations of the score distribution (saturated vs. mean/variance specification), Bradley-Terry mixture models, and MPT mixture models are implemented. These mixture models can be estimated with or without concomitant variables. See Frick et al. (2012) <doi:10.18637/jss.v048.i07> and Frick et al. (2015) <doi:10.1177/0013164414536183> for details on the Rasch mixture models.

Version: 1.1-9
Depends: R (≥ 3.0.0), flexmix (≥ 2.3-7), psychotools (≥ 0.4-2)
Imports: graphics, methods, stats, lattice, Formula (≥ 1.1-0), modeltools
Suggests: effects, lmtest, nnet, numDeriv
Published: 2024-09-10
DOI: 10.32614/CRAN.package.psychomix
Author: Hannah Frick ORCID iD [aut], Friedrich Leisch ORCID iD [aut], Carolin Strobl ORCID iD [aut], Florian Wickelmaier [aut], Achim Zeileis ORCID iD [aut, cre]
Maintainer: Achim Zeileis <Achim.Zeileis at R-project.org>
License: GPL-2 | GPL-3
NeedsCompilation: no
Citation: psychomix citation info
Materials: NEWS
In views: Cluster, Psychometrics
CRAN checks: psychomix results

Documentation:

Reference manual: psychomix.html , psychomix.pdf
Vignettes: Flexible Rasch Mixture Models with Package psychomix (source, R code)
Rasch Mixture Models for DIF Detection: A Comparison of Old and New Score Specifications (source, R code)

Downloads:

Package source: psychomix_1.1-9.tar.gz
Windows binaries: r-devel: psychomix_1.1-9.zip, r-release: psychomix_1.1-9.zip, r-oldrel: psychomix_1.1-9.zip
macOS binaries: r-release (arm64): psychomix_1.1-9.tgz, r-oldrel (arm64): psychomix_1.1-9.tgz, r-release (x86_64): psychomix_1.1-9.tgz, r-oldrel (x86_64): psychomix_1.1-9.tgz
Old sources: psychomix archive

Linking:

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