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Please cite both the cofad tutorial and software paper:

Henninger M, Malejka S, Titz J (2025). “Contrast analysis for competing hypotheses: A tutorial using the R package cofad.” Behavior Research Methods, 57, 326. doi:10.3758/s13428-025-02833-w.

Titz J, Burkhardt M (2021). “cofad: An R package and Shiny app for contrast analysis.” Journal of Open Source Software, 6(67), 3822. doi:10.21105/joss.03822.

Corresponding BibTeX entries: 

  @Article{,
    title = {Contrast analysis for competing hypotheses: A tutorial
      using the R package cofad},
    author = {Mirka Henninger and Simone Malejka and Johannes Titz},
    journal = {Behavior Research Methods},
    year = {2025},
    volume = {57},
    pages = {326},
    doi = {10.3758/s13428-025-02833-w},
  }

  @Article{,
    title = {cofad: An R package and Shiny app for contrast analysis},
    author = {Johannes Titz and Markus Burkhardt},
    journal = {Journal of Open Source Software},
    year = {2021},
    volume = {6},
    number = {67},
    pages = {3822},
    doi = {10.21105/joss.03822},
  }

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