a posteriori test

Quick Reference

A statistical test that was not planned before the data were collected, especially a multiple comparison corrected for the bias that can arise when tests are made of differences that emerge from inspecting data. Also called a post hoc test. See Bonferroni correction, Duncan's multiple range test, least-significant difference test, Newman-Keuls test, Scheffé test, Tukey-HSD test. Compare planned comparison. [From Latin a from + posteriori the latter]

Subjects: Psychology.

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