Package: GMLTM Type: Package Title: Generalized Multicomponent Latent Trait Model for Diagnosis Version: 0.1.0 Authors@R: c( person("Eduar", "Ramirez", email = "edrami02@ucm.es", role = c("aut", "cre")), person("Marcos", "Jimenez", email = "marcosjnezhquez@gmail.com", role = "aut"), person("Vithor R.", "Franco", role = "aut"), person("Jesus", "Alvarado", role = "aut") ) Description: Provides Bayesian estimation of Item Response Theory models that decompose item difficulty into cognitive operations or rules. Implements the Linear Logistic Test Model (LLTM; Fischer (1973) ), the Multicomponent Latent Trait Model for Diagnosis (MLTM-D; Embretson and Yang (2013) ), and the Generalized Multicomponent Latent Trait Model for Diagnosis (GMLTM-D; Ramirez et al. (2024) ). All models are estimated via Hamiltonian Monte Carlo using 'Stan' through the 'rstan' interface. Includes tools for model validation, reliability estimation, and visualization of item characteristic curves. Supports user-defined prior distributions for all model parameters. License: GPL (>= 3) URL: https://github.com/Eduar-Ramirez/GMLTM-D BugReports: https://github.com/Eduar-Ramirez/GMLTM-D/issues Encoding: UTF-8 LazyData: true Depends: R (>= 4.1.0) Imports: rstan (>= 2.21.0), ggplot2, gridExtra, grid, utils, parallel, loo, RColorBrewer Suggests: testthat (>= 3.0.0), knitr, rmarkdown SystemRequirements: C++17, GNU make VignetteBuilder: knitr Language: en-US RoxygenNote: 7.3.2 NeedsCompilation: no Packaged: 2026-06-30 16:47:50 UTC; root Author: Eduar Ramirez [aut, cre], Marcos Jimenez [aut], Vithor R. Franco [aut], Jesus Alvarado [aut] Maintainer: Eduar Ramirez Config/pak/sysreqs: make Repository: https://cran.r-universe.dev Date/Publication: 2026-06-30 11:40:07 UTC RemoteUrl: https://github.com/cran/GMLTM RemoteRef: HEAD RemoteSha: eb15116465800017bc1d8a0a93914a08e0895328