Package: GMLTM
Type: Package
Title: Generalized Multicomponent Latent Trait Model for Diagnosis
Version: 2.0.0
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) <doi:10.1016/0001-6918(73)90003-6>), the
        Multicomponent Latent Trait Model for Diagnosis (MLTM-D;
        Embretson and Yang (2013) <doi:10.1007/s11336-012-9296-y>), and
        the Generalized Multicomponent Latent Trait Model for Diagnosis
        (GMLTM-D; Ramirez et al. (2024)
        <doi:10.3390/jintelligence12070067>), including a variant with
        correlated latent components. All models are estimated via
        Hamiltonian Monte Carlo using 'Stan' through the 'rstan'
        interface. Includes tools for prior predictive checks (Gelman
        et al., 2020), model validation, conditional reliability
        estimation, examinee mastery classification following Embretson
        (2019) <doi:10.1007/978-3-030-05584-4_9>, and individual
        diagnostic reports at the rule and component level. 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
Config/pak/sysreqs: cmake make
Repository: https://eduar-ramirez.r-universe.dev
Date/Publication: 2026-08-27 10:37:29 UTC
RemoteUrl: https://github.com/eduar-ramirez/gmltm-d
RemoteRef: HEAD
RemoteSha: 6e05e229178ffdb47b40bd137ae880a6e04f94f3
NeedsCompilation: no
Packaged: 2026-10-26 08:20:40 UTC; root
Author: Eduar Ramirez [aut, cre],
  Marcos Jimenez [aut],
  Vithor R. Franco [aut],
  Jesus Alvarado [aut]
Maintainer: Eduar Ramirez <edrami02@ucm.es>