Package: D3mirt
Title: Descriptive 3D Multidimensional Item Response Theory Modelling
Version: 2.0.4
Authors@R: 
    person("Erik", "Forsberg", email= "forsbergpsychometrics@gmail.com", role = c("aut", "cre", "cph"),
           comment = c(ORCID = "0000-0002-5228-9729"))
Description: 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 latent space. The results can be useful for item-level analysis as well as test development.
License: GPL (>= 3)
URL: https://github.com/ForsbergPyschometrics/D3mirt
BugReports: https://github.com/ForsbergPyschometrics/D3mirt/issues
Depends: R (>= 3.6.0), rgl (>= 1.3.1)
Imports: mirt
Suggests: knitr, rmarkdown, stats, testthat, R.rsp
Encoding: UTF-8
RoxygenNote: 7.3.1
LazyData: true
VignetteBuilder: R.rsp
Config/testthat/edition: 3
NeedsCompilation: no
Packaged: 2024-06-22 14:53:39 UTC; erfo2700
Author: Erik Forsberg [aut, cre, cph] (<https://orcid.org/0000-0002-5228-9729>)
Maintainer: Erik Forsberg <forsbergpsychometrics@gmail.com>
Repository: CRAN
Date/Publication: 2024-06-22 15:30:02 UTC
Built: R 4.6.0; ; 2026-04-26 17:27:10 UTC; unix
