To cite package ‘PsyMetricTools’ in publications use:

  Ventura-Leon J (2026). _PsyMetricTools: Psychometric and Statistical
  Analysis Tools_. R package version 1.2.3,
  <https://github.com/jventural/psymetrictools>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {PsyMetricTools: Psychometric and Statistical Analysis Tools},
    author = {Jose Ventura-Leon},
    year = {2026},
    note = {R package version 1.2.3},
    url = {https://github.com/jventural/psymetrictools},
  }