CDM: Cognitive Diagnosis Modeling

Functions for cognitive diagnosis modeling and multidimensional item response modeling for dichotomous and polytomous data. This package enables the estimation of the DINA and DINO model, the multiple group (polytomous) GDINA model, the multiple choice DINA model, the general diagnostic model (GDM), the multidimensional linear compensatory item response model and the structured latent class model (SLCA).

Version: 5.0-0
Depends: R (≥ 2.15.0), mvtnorm
Imports: graphics, grDevices, lattice, MASS, methods, plyr, polycor, psych, Rcpp, sfsmisc, stats, utils
LinkingTo: Rcpp, RcppArmadillo
Suggests: BIFIEsurvey, miceadds, mirt (≥ 1.17), sirt, TAM
Published: 2016-07-11
Author: Alexander Robitzsch [aut, cre], Thomas Kiefer [aut], Ann Cathrice George [aut], Ali Uenlue [aut]
Maintainer: Alexander Robitzsch <robitzsch at>
BugReports: NA
License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
NeedsCompilation: yes
Materials: NEWS
In views: Psychometrics
CRAN checks: CDM results


Reference manual: CDM.pdf
Package source: CDM_5.0-0.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
OS X Mavericks binaries: r-release: CDM_5.0-0.tgz, r-oldrel: CDM_5.0-0.tgz
Old sources: CDM archive

Reverse dependencies:

Reverse depends: sirt, TAM
Reverse imports: immer