Package: jrt 1.1.3

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.

Authors:Nils Myszkowski [aut, cre]

jrt_1.1.3.tar.gz
jrt_1.1.3.zip(r-4.7)jrt_1.1.3.zip(r-4.6)jrt_1.1.3.zip(r-4.5)
jrt_1.1.3.tgz(r-4.6-any)jrt_1.1.3.tgz(r-4.5-any)
jrt_1.1.3.tar.gz(r-4.7-any)jrt_1.1.3.tar.gz(r-4.6-any)
jrt_1.1.3.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
card.svg |card.png
jrt/json (API)
NEWS

# Install 'jrt' in R:
install.packages('jrt', repos = c('https://nilsmy.r-universe.dev', 'https://cloud.r-project.org'))
Datasets:
  • ratings - A simulated dataset with 300 products judged by 6 judges.
  • ratings_missing - A simulated dataset with 350 cases judged by 5 judges, using a planned missingness design.

On CRAN:

Conda:

This package does not link to any Github/Gitlab/R-forge repository. No issue tracker or development information is available.

2.70 score 10 scripts 492 downloads 3 exports 93 dependencies

Last updated from:229531e63f. Checks:9 OK. Indexed: yes.

TargetResultTimeFilesSyslog
linux-devel-x86_64OK194
source / vignettesOK256
linux-release-x86_64OK183
macos-release-arm64OK170
macos-oldrel-arm64OK104
windows-develOK130
windows-releaseOK128
windows-oldrelOK134
wasm-releaseOK138

Exports:info.plotjcc.plotjrt

Dependencies:audiobeeprbriocallrclassclicliprclustercodetoolscpp11crayondcurverDerivdescdiffobjdigestdirectlabelsdplyre1071evaluatefarverfsfuturefuture.applygenericsggplot2ggsciglobalsglueGPArotationgridExtragtableirrisobandjsonlitelabelinglatticelifecyclelistenvlpSolvemagrittrMASSMatrixmgcvmiraimirtmnormtnanonextnlmeparallellypbapplypermutepillarpkgbuildpkgconfigpkgloadpraiseprocessxprogressrproxypspsychpurrrqs2quadprogR.methodsS3R.ooR.utilsR6RColorBrewerRcppRcppArmadilloRcppParallelrlangrprojrootS7scalessessioninfoSimDesignsplines2stringfishstringistringrtestthattibbletidyrtidyselectutf8vctrsveganviridisLitewaldowithr

Using jrt

Nils Myszkowski, PhD

Rendered frommy-vignette.Rmdusingknitr::rmarkdownon May 15 2026.

Last update: 2025-07-31
Started: 2019-01-04