Literature

Cohen, Jacob. 2016. A Power Primer. Methodological Issues and Strategies in Clinical Research, 4th Ed. Washington, DC, US: American Psychological Association. https://doi.org/10.1037/14805-018.

Evans, James D. 1996. Straightforward Statistics for the Behavioral Sciences. Brooks/Cole Publishing Company.

Freedman, David, Robert Pisani, and Roger Purves. 2007. Statistics, 4th Edition. New York: W. W. Norton & Company.

Grima, Pere. 2010. La Certeza Absoluta y Otras Ficciones: Los Secretos de La Estadı́stica. El Mundo Es Matemático. RBA. https://books.google.pl/books?id=pvzwMwEACAAJ.

Gulczyński, Michał. 2025a. “Piano Brands at the 19th Chopin Competition.” Tweet. Twitter. https://x.com/gulczynskim/status/1975650971050254527.

———. 2025b. “Piano Brands at the 19th Chopin Competition: Participants of the 2nd Stage.” Tweet. Twitter. https://x.com/gulczynskim/status/1975948634597511385.