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: | 1.1.3 |
| 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: | 2025-07-31 |
| 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 |
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