To cite package ‘mlmpower’ in publications use:

  Keller B (2026). _mlmpower: Power Analysis and Data Simulation for
  Multilevel Models_. R package version 1.0.11,
  <https://github.com/bkeller2/mlmpower>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {mlmpower: Power Analysis and Data Simulation for Multilevel Models},
    author = {Brian T. Keller},
    year = {2026},
    note = {R package version 1.0.11},
    url = {https://github.com/bkeller2/mlmpower},
  }
