To cite package ‘mixedsubjectsirt’ in publications use:

  Kanopka K (2026). _mixedsubjectsirt: Item Response Theory Calibration
  with a Mixed Subjects Design_. R package version 1.0.0,
  <https://CRAN.R-project.org/package=mixedsubjectsirt>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {mixedsubjectsirt: Item Response Theory Calibration with a Mixed Subjects Design},
    author = {Klint Kanopka},
    year = {2026},
    note = {R package version 1.0.0},
    url = {https://CRAN.R-project.org/package=mixedsubjectsirt},
  }