To cite package ‘hIRT’ in publications use:

  Zhou X (2026). _hIRT: Hierarchical Item Response Theory Models_. R
  package version 0.5.0, <https://CRAN.R-project.org/package=hIRT>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {hIRT: Hierarchical Item Response Theory Models},
    author = {Xiang Zhou},
    year = {2026},
    note = {R package version 0.5.0},
    url = {https://CRAN.R-project.org/package=hIRT},
  }