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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.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:

Please use the canonical form https://CRAN.R-project.org/package=psychomix to link to this page.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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