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).
Version: 8.2-6 Depends: R (≥ 3.1), mvtnorm Imports: graphics, grDevices, methods, polycor, Rcpp, stats, utils LinkingTo: Rcpp, RcppArmadillo Suggests: BIFIEsurvey, lattice, MASS, miceadds, ROI, sfsmisc Enhances: dina, GDINA, mirt, rrum Published: 2022-08-25 DOI: 10.32614/CRAN.package.CDM Author: Alexander Robitzsch [aut, cre], Thomas Kiefer [aut], Ann Cathrice George [aut], Ali Uenlue [aut] Maintainer: Alexander Robitzsch <robitzsch at ipn.uni-kiel.de> BugReports: https://github.com/alexanderrobitzsch/CDM/issues?state=open License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)] URL: https://github.com/alexanderrobitzsch/CDM, https://sites.google.com/site/alexanderrobitzsch2/software NeedsCompilation: yes Citation: CDM citation info Materials: README NEWS In views: Psychometrics CRAN checks: CDM results [issues need fixing before 2025-07-17] Documentation: Downloads: Reverse dependencies: Linking:Please use the canonical form https://CRAN.R-project.org/package=CDM to link to this page.
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