cdmTools: Useful Tools for Cognitive Diagnosis Modeling

Provides useful tools for cognitive diagnosis modeling (CDM). The packages includes the discrete factor loading method for Q-matrix estimation (Wang, Song, & Ding, 2018, <doi:10.1007/978-3-319-77249-3_29>) and the Hull method for Q-matrix validation (Nájera, Sorrel, de la Torre, & Abad, 2021, <doi:10.1111/bmsp.12228>). It also provides dimensionality assessment procedures for determining the number of attributes underlying CDM data, including parallel analysis and automated CDM fit comparison as explored in Nájera, Abad, and Sorrel (2021, <doi:10.3389/fpsyg.2021.614470>). Lastly, the package provides some useful functions for CDM simulation studies, such as random Q-matrix generation and detection of complete/identified Q-matrices.

Version: 1.0.0
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)
Suggests: CDM
Published: 2021-05-13
Author: Pablo Nájera [aut, cre, cph], Miguel A. Sorrel [aut, cph], Francisco J. Abad [aut, cph]
Maintainer: Pablo Nájera <pablo.najera at>
License: GPL-3
NeedsCompilation: no
Materials: README NEWS
CRAN checks: cdmTools results


Reference manual: cdmTools.pdf
Package source: cdmTools_1.0.0.tar.gz
Windows binaries: r-devel:, r-release:, r-oldrel:
macOS binaries: r-release (arm64): cdmTools_1.0.0.tgz, r-release (x86_64): cdmTools_1.0.0.tgz, r-oldrel: cdmTools_1.0.0.tgz


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