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# CITATION file created with {cffr} R package
# See also: https://docs.ropensci.org/cffr/
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cff-version: 1.2.0
message: 'To cite package "D3mirt" in publications use:'
type: software
license: GPL-3.0-or-later
title: 'D3mirt: Descriptive 3D Multidimensional Item Response Theory Modeling'
version: 2.0.5.9000
identifiers:
- type: doi
  value: 10.32614/CRAN.package.D3mirt
abstract: 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
  primarily exploratory and centered on the plot function, which exposes item characteristics
  and constructs, represented by vector arrows, within a three-dimensional interactive
  latent space. The results can be useful for item-level analysis as well as test
  development.
authors:
- family-names: Forsberg
  given-names: Erik
  email: forsbergpsychometrics@gmail.com
  orcid: https://orcid.org/0000-0002-5228-9729
preferred-citation:
  type: manual
  title: 'D3mirt: Descriptive 3D Multidimensional Item Response Theory Modeling'
  authors:
  - family-names: Forsberg
    given-names: Erik
    orcid: https://orcid.org/0000-0002-5228-9729
    email: forsbergpsychometrics@gmail.com
  year: '2024'
  notes: R package version 2.0.5
  url: https://CRAN.R-project.org/package=D3mirt
repository: https://forsbergpsychometrics.r-universe.dev
repository-code: https://github.com/ForsbergPyschometrics/D3mirt
commit: ec77bd967b42a7be3ba8ceb12124b5b2657a63b2
url: https://github.com/ForsbergPyschometrics/D3mirt
date-released: '2026-06-07'
contact:
- family-names: Forsberg
  given-names: Erik
  email: forsbergpsychometrics@gmail.com
  orcid: https://orcid.org/0000-0002-5228-9729