To cite package ‘CTTvis’ in publications use:

Wongvorachan T (2025). CTTvis: Visualize Item Metrics of the Classical Test Theory Framework. R package version 0.1.1, https://github.com/taridwong/cttvis.

Corresponding BibTeX entry:

  @Manual{,
    title = {CTTvis: Visualize Item Metrics of the Classical Test
      Theory Framework},
    author = {Tarid Wongvorachan},
    year = {2025},
    note = {R package version 0.1.1},
    url = {https://github.com/taridwong/cttvis},
  }