jrt: Item Response Theory Modeling and Scoring for Judgment Data

Psychometric analysis and scoring of judgment data using polytomous Item-Response Theory (IRT) models, as described in Myszkowski and Storme (2019) <doi:10.1037/aca0000225> and Myszkowski (2021) <doi:10.1037/aca0000287>. A function is used to automatically compare and select models, as well as to present a variety of model-based statistics. Plotting functions are used to present category curves, as well as information, reliability and standard error functions.

Version: 1.1.2
Depends: R (≥ 3.5.0), directlabels (≥ 2021.1.13)
Imports: mirt (≥ 1.34), psych (≥ 2.1.9), irr (≥ 0.84.1), methods, utils, stats, dplyr (≥ 1.0.7), tidyr (≥ 1.1.4), ggplot2 (≥ 3.3.5), ggsci (≥ 2.9)
Suggests: knitr, rmarkdown
Published: 2023-04-13
DOI: 10.32614/CRAN.package.jrt
Author: Nils Myszkowski [aut, cre]
Maintainer: Nils Myszkowski <nilsmyszkowskiscience at gmail.com>
License: GPL-3
NeedsCompilation: no
Citation: jrt citation info
Materials: README NEWS
In views: Psychometrics
CRAN checks: jrt results


Reference manual: jrt.pdf
Vignettes: Using 'jrt'


Package source: jrt_1.1.2.tar.gz
Windows binaries: r-devel: jrt_1.1.2.zip, r-release: jrt_1.1.2.zip, r-oldrel: jrt_1.1.2.zip
macOS binaries: r-release (arm64): jrt_1.1.2.tgz, r-oldrel (arm64): jrt_1.1.2.tgz, r-release (x86_64): jrt_1.1.2.tgz, r-oldrel (x86_64): jrt_1.1.2.tgz
Old sources: jrt archive


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