Package: CDM
Type: Package
Title: Cognitive Diagnosis Modeling
Version: 8.4-9
Date: 2025-10-30 12:39:38
Authors@R: c(person(given = "Alexander",
                        family = "Robitzsch",
                        role = c("aut", "cre"),
                        email = "robitzsch@ipn.uni-kiel.de"),
                 person(given = "Thomas",
                        family = "Kiefer",
                        role = "aut"),
                 person(given = c("Ann", "Cathrice"),
                        family = "George",
                        role = "aut"),
                 person(given = "Ali",
                        family = "Uenlue",
                        role = "aut"))
Maintainer: Alexander Robitzsch <robitzsch@ipn.uni-kiel.de>
Description: Functions for cognitive diagnosis modeling and
        multidimensional item response modeling for dichotomous and
        polytomous item responses. This package enables the estimation
        of the DINA and DINO model (Junker & Sijtsma, 2001,
        <doi:10.1177/01466210122032064>), the multiple group
        (polytomous) GDINA model (de la Torre, 2011,
        <doi:10.1007/s11336-011-9207-7>), the multiple choice DINA
        model (de la Torre, 2009, <doi:10.1177/0146621608320523>), the
        general diagnostic model (GDM; von Davier, 2008,
        <doi:10.1348/000711007X193957>), the structured latent class
        model (SLCA; Formann, 1992,
        <doi:10.1080/01621459.1992.10475229>) and regularized latent
        class analysis (Chen, Li, Liu, & Ying, 2017,
        <doi:10.1007/s11336-016-9545-6>). See George, Robitzsch,
        Kiefer, Gross, and Uenlue (2017) <doi:10.18637/jss.v074.i02> or
        Robitzsch and George (2019, <doi:10.1007/978-3-030-05584-4_26>)
        for further details on estimation and the package structure.
        For tutorials on how to use the CDM package see George and
        Robitzsch (2015, <doi:10.20982/tqmp.11.3.p189>) as well as
        Ravand and Robitzsch (2015).
Depends: R (>= 3.1), mvtnorm
Imports: graphics, grDevices, methods, polycor, Rcpp, stats, utils
Suggests: BIFIEsurvey, lattice, MASS, miceadds, ROI, sfsmisc
LinkingTo: Rcpp, RcppArmadillo
Enhances: dina, GDINA, mirt, rrum
LazyLoad: yes
LazyData: yes
URL: https://github.com/alexanderrobitzsch/CDM,
        https://sites.google.com/view/alexander-robitzsch/software
License: GPL (>= 2)
BugReports: https://github.com/alexanderrobitzsch/CDM/issues?state=open
Repository: https://alexanderrobitzsch.r-universe.dev
Date/Publication: 2025-10-30 11:52:47 UTC
RemoteUrl: https://github.com/alexanderrobitzsch/cdm
RemoteRef: HEAD
RemoteSha: 9a731f28426367d9c56576035930c7246a902894
NeedsCompilation: yes
Packaged: 2026-06-24 04:10:35 UTC; root
Author: Alexander Robitzsch [aut, cre],
  Thomas Kiefer [aut],
  Ann Cathrice George [aut],
  Ali Uenlue [aut]