SCAtools uses the NCA computational engine. Please cite SCAtools, the
papers that set out sufficient condition analysis, and the underlying
NCA method.

  Chan Y (2026). _SCAtools: Direction-Aware Sufficient Condition
  Analysis_. R package version 0.5.1.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {SCAtools: Direction-Aware Sufficient Condition Analysis},
    author = {Young Chan},
    year = {2026},
    note = {R package version 0.5.1},
  }

  Chan Y (in press). “From Necessity to Sufficiency and
  Necessity-and-Sufficiency: Extending Condition Analysis in Degree.”
  University of Leeds.

A BibTeX entry for LaTeX users is

  @Misc{,
    title = {From Necessity to Sufficiency and Necessity-and-Sufficiency: Extending Condition Analysis in Degree},
    author = {Young Chan},
    year = {in press},
    howpublished = {University of Leeds},
  }

  Chan Y (in press). “Mean Effects Are Not Sufficiency Effects: How
  Sufficient Condition Analysis Complements Regression Analysis.”
  University of Leeds.

A BibTeX entry for LaTeX users is

  @Misc{,
    title = {Mean Effects Are Not Sufficiency Effects: How Sufficient Condition Analysis Complements Regression Analysis},
    author = {Young Chan},
    year = {in press},
    howpublished = {University of Leeds},
  }

  Dul J (2016). “Necessary Condition Analysis (NCA): Logic and
  Methodology of 'Necessary but Not Sufficient' Causality.”
  _Organizational Research Methods_, *19*(1), 10-52.
  doi:10.1177/1094428115584005
  <https://doi.org/10.1177/1094428115584005>.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Necessary Condition Analysis (NCA): Logic and Methodology of 'Necessary but Not Sufficient' Causality},
    author = {Jan Dul},
    journal = {Organizational Research Methods},
    year = {2016},
    volume = {19},
    number = {1},
    pages = {10--52},
    doi = {10.1177/1094428115584005},
  }