To cite cogirt in publications use:

  Michael Thomas (2024). _cogirt: Item Response Theory for Cognitive
  Testing_. R package version 0.1.0,
  <https://CRAN.R-project.org/package=cogirt>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {cogirt: Item Response Theory for Cognitive Testing},
    author = {{Michael Thomas}},
    year = {2024},
    note = {R package version 0.1.0},
    url = {https://CRAN.R-project.org/package=cogirt},
  }