To cite nlpsem in publications, please use:

Liu J (2025). “Examination of nonlinear longitudinal processes with latent variables, latent processes, latent changes, and latent classes in the structural equation modeling framework: The R package nlpsem.” Behavior Research Methods, 57(3), 87. doi:10.3758/s13428-025-02596-4.

Corresponding BibTeX entry:

  @Article{,
    title = {Examination of nonlinear longitudinal processes with
      latent variables, latent processes, latent changes, and latent
      classes in the structural equation modeling framework: The {R}
      package {nlpsem}},
    author = {Jin Liu},
    journal = {Behavior Research Methods},
    year = {2025},
    volume = {57},
    number = {3},
    pages = {87},
    doi = {10.3758/s13428-025-02596-4},
  }