Package: cdmTools
Type: Package
Title: Useful Tools for Cognitive Diagnosis Modeling
Version: 1.0.6
Date: 2025-04-24
Authors@R: c(person(given = "Pablo", family = "Nájera", role = c("aut", "cre", "cph"), email = "p.najeraalvarez@gmail.com"), person(given = "Miguel A.", family = "Sorrel", role = c("aut", "cph"), email = "miguel.sorrel@uam.es"), person(given = "Francisco J.", family = "Abad", role = c("aut", "cph")), person(given = "Rodrigo S.", family = "Kreitchmann", role = c("ctb")), person(given = "Kevin", family = "Santos", role = c("ctb")))
Description: Provides useful tools for cognitive diagnosis modeling (CDM). The package includes functions for empirical Q-matrix estimation and validation, such as the Hull method (Nájera, Sorrel, de la Torre, & Abad, 2021, <doi:10.1111/bmsp.12228>) and the discrete factor loading method (Wang, Song, & Ding, 2018, <doi:10.1007/978-3-319-77249-3_29>). It also contains dimensionality assessment procedures for CDM, including parallel analysis and automated fit comparison as explored in Nájera, Abad, and Sorrel (2021, <doi:10.3389/fpsyg.2021.614470>). Other relevant methods and features for CDM applications, such as the restricted DINA model (Nájera et al., 2023; <doi:10.3102/10769986231158829>), the general nonparametric classification method (Chiu et al., 2018; <doi:10.1007/s11336-017-9595-4>), and corrected estimation of the classification accuracy via multiple imputation (Kreitchmann et al., 2022; <doi:10.3758/s13428-022-01967-5>) are also available. Lastly, the package provides some useful functions for CDM simulation studies, such as random Q-matrix generation and detection of complete/identified Q-matrices.
License: GPL-3
Depends: R (>= 3.6.0)
Imports: GDINA (>= 2.8.0), ggplot2 (>= 3.3.0), psych (>= 1.9.12), sirt
        (>= 3.9-4), parallel (>= 3.6.3), stats (>= 3.6.3), GPArotation
        (>= 2014.11-1), combinat (>= 0.0-8), fungible, foreach, doSNOW,
        plyr
URL: https://github.com/pablo-najera/cdmTools
BugReports: https://github.com/pablo-najera/cdmTools/issues
RoxygenNote: 7.3.2
Encoding: UTF-8
Author: Pablo Nájera [aut, cre, cph],
  Miguel A. Sorrel [aut, cph],
  Francisco J. Abad [aut, cph],
  Rodrigo S. Kreitchmann [ctb],
  Kevin Santos [ctb]
Maintainer: Pablo Nájera <p.najeraalvarez@gmail.com>
NeedsCompilation: no
Packaged: 2025-05-16 11:27:59 UTC; pnajera
Repository: CRAN
Date/Publication: 2025-05-19 08:10:02 UTC
Built: R 4.6.0; ; 2026-04-30 08:44:04 UTC; unix
