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>. A convenience 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: 1.0.1
Depends: R (≥ 3.5.0), directlabels (≥ 2017.03.31)
Imports: mirt (≥ 1.30), psych (≥, irr (≥ 0.84), methods, utils, stats, dplyr (≥ 0.7.7), tidyr (≥ 0.8.3), ggplot2 (≥ 3.1.1), ggsci (≥ 2.9)
Suggests: knitr, rmarkdown
Published: 2019-05-06
Author: Nils Myszkowski [aut, cre]
Maintainer: Nils Myszkowski <nilsmyszkowskiscience at gmail.com>
License: GPL-3
NeedsCompilation: no
Citation: jrt citation info
Materials: README NEWS
CRAN checks: jrt results


Reference manual: jrt.pdf
Vignettes: Using jrt
Package source: jrt_1.0.1.tar.gz
Windows binaries: r-devel: jrt_1.0.1.zip, r-release: jrt_1.0.1.zip, r-oldrel: jrt_1.0.1.zip
OS X binaries: r-release: jrt_1.0.1.tgz, r-oldrel: jrt_1.0.1.tgz
Old sources: jrt archive


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