Package: IRTest Type: Package Title: Parameter Estimation of Item Response Theory with Estimation of Latent Distribution Version: 2.2.0 Authors@R: person("Seewoo", "Li", email = "seewooli@g.ucla.edu", role = c("aut", "cre", "cph")) Description: Item response theory (IRT) parameter estimation using marginal maximum likelihood and expectation-maximization algorithm (Bock \& Aitkin, 1981 ). Within parameter estimation algorithm, several methods for latent distribution estimation are available. Reflecting some features of the true latent distribution, these latent distribution estimation methods can possibly enhance the estimation accuracy and free the normality assumption on the latent distribution. License: GPL (>= 3) Encoding: UTF-8 RoxygenNote: 7.3.3 URL: https://github.com/SeewooLi/IRTest BugReports: https://github.com/SeewooLi/IRTest/issues Suggests: knitr, rmarkdown, testthat (>= 3.0.0), gridExtra VignetteBuilder: knitr Imports: betafunctions, dcurver, ggplot2, usethis, tidyr Depends: R (>= 3.5) Config/testthat/edition: 3 Config/pak/sysreqs: cmake git make libgit2-dev libicu-dev libuv1-dev libssl-dev libx11-dev Repository: https://seewooli.r-universe.dev Date/Publication: 2026-03-16 20:59:45 UTC RemoteUrl: https://github.com/seewooli/irtest RemoteRef: HEAD RemoteSha: 2527c143df58cb95e13665def0f8ceca0e4ac27d NeedsCompilation: no Packaged: 2026-10-12 09:08:46 UTC; root Author: Seewoo Li [aut, cre, cph] Maintainer: Seewoo Li