The hardware and bandwidth for this mirror is donated by METANET, the Webhosting and Full Service-Cloud Provider.
If you wish to report a bug, or if you are interested in having us mirror your free-software or open-source project, please feel free to contact us at mirror[@]metanet.ch.

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

Documentation:

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

Downloads:

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

Linking:

Please use the canonical form https://CRAN.R-project.org/package=jrt 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.