D3mirt: Descriptive 3D Multidimensional Item Response Theory Modeling

For identifying, estimating, and plotting descriptive multidimensional item response theory models, restricted to 3D and dichotomous or polytomous data that fit the two-parameter logistic model or the graded response model. The method is foremost explorative and centered around the plot function that exposes item characteristics and constructs, represented by vector arrows, located in a three-dimensional interactive space. The results can be useful for item-level analysis as well as test development.

Version: 1.1.0
Depends: mirt, R (≥ 3.5.0), rgl (≥ 1.0.1)
Suggests: knitr, rmarkdown, stats
Published: 2023-08-08
Author: Erik Forsberg ORCID iD [aut, cre, cph]
Maintainer: Erik Forsberg <forsbergpsychometrics at gmail.com>
BugReports: https://github.com/ForsbergPyschometrics/D3mirt/issues
License: GPL (≥ 3)
URL: https://github.com/ForsbergPyschometrics/D3mirt
NeedsCompilation: no
Citation: D3mirt citation info
Materials: README NEWS
CRAN checks: D3mirt results


Reference manual: D3mirt.pdf
Vignettes: Introduction to D3mirt Analysis


Package source: D3mirt_1.1.0.tar.gz
Windows binaries: r-devel: D3mirt_1.1.0.zip, r-release: D3mirt_1.1.0.zip, r-oldrel: D3mirt_1.1.0.zip
macOS binaries: r-release (arm64): D3mirt_1.1.0.tgz, r-oldrel (arm64): D3mirt_1.1.0.tgz, r-release (x86_64): D3mirt_1.1.0.tgz, r-oldrel (x86_64): D3mirt_1.1.0.tgz
Old sources: D3mirt archive


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