Item response theory (IRT) parameter estimation using marginal maximum likelihood and expectation-maximization algorithm (Bock & Aitkin, 1981 <doi:10.1007/BF02293801>). Within parameter estimation algorithm, several methods for latent distribution estimation are available (Li, 2022 <https://www.riss.kr/search/detail/DetailView.do?p_mat_type=be54d9b8bc7cdb09&control_no=9a95f68e2c1126c5ffe0bdc3ef48d419>). Reflecting some features of the true latent distribution, these latent distribution estimation methods can possibly free the normality assumption on the latent distribution.
| Version: | 0.0.2 |
| Depends: | R (≥ 2.10) |
| Imports: | betafunctions, dcurver, ggplot2 |
| Suggests: | knitr, rmarkdown, testthat (≥ 3.0.0) |
| Published: | 2022-09-06 |
| Author: | Seewoo Li [aut, cre] |
| Maintainer: | Seewoo Li <cu at yonsei.ac.kr> |
| BugReports: | https://github.com/SeewooLi/IRTest/issues |
| License: | GPL (≥ 3) |
| URL: | https://github.com/SeewooLi/IRTest |
| NeedsCompilation: | no |
| Citation: | IRTest citation info |
| Materials: | README NEWS |
| CRAN checks: | IRTest results |
| Reference manual: | IRTest.pdf |
| Vignettes: |
IRT without the normality assumption |
| Package source: | IRTest_0.0.2.tar.gz |
| Windows binaries: | r-devel: IRTest_0.0.2.zip, r-release: IRTest_0.0.2.zip, r-oldrel: IRTest_0.0.2.zip |
| macOS binaries: | r-release (arm64): not available, r-oldrel (arm64): not available, r-release (x86_64): IRTest_0.0.2.tgz, r-oldrel (x86_64): IRTest_0.0.2.tgz |
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