To cite package ‘LTCDM’ in publications use:

Liang Q, de la Torre J (2025). LTCDM: Latent Transition Cognitive Diagnosis Model with Covariates. R package version 1.1.0, https://CRAN.R-project.org/package=LTCDM.

Corresponding BibTeX entry:

  @Manual{,
    title = {LTCDM: Latent Transition Cognitive Diagnosis Model with
      Covariates},
    author = {Qianru Liang and Jimmy {de la Torre}},
    year = {2025},
    note = {R package version 1.1.0},
    url = {https://CRAN.R-project.org/package=LTCDM},
  }