Psychometric analysis and scoring of judgment data using polytomous Item-Response Theory (IRT) models, as described in Myszkowski and Storme (2018) <doi:10.17605/OSF.IO/9WC34>. 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: | 1.0.0 |
| Depends: | R (≥ 3.5.0), directlabels (≥ 2017.03.31) |
| Imports: | mirt (≥ 1.29), psych (≥ 1.8.3.3), irr (≥ 0.84), methods, utils, stats, dplyr (≥ 0.7.7), tidyr (≥ 0.8.2), ggplot2 (≥ 3.1.0), ggsci (≥ 2.9) |
| Suggests: | knitr, rmarkdown |
| Published: | 2019-01-04 |
| 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_1.0.0.tar.gz |
| Windows binaries: | r-devel: jrt_1.0.0.zip, r-release: jrt_1.0.0.zip, r-oldrel: not available |
| OS X binaries: | r-release: jrt_1.0.0.tgz, r-oldrel: not available |
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