Scheffé test

a post hoc test used after a researcher obtains a significant F ratio in an analysis of variance that has more than two levels (i.e., more than two conditions of an independent variable that are being examined for differences among their mean values). It allows for the testing of all possible contrasts (weighted comparisons of any number of means) while controlling the probability of a Type I error for the set of contrasts at a prespecified level. The Scheffé test is considered to be one of the most stringent multiple comparison tests because it is conservative in its identification of statistically significant mean differences between groups. [Henry Scheffé (1907–1977), U.S. mathematician]

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Psychology term of the day

November 21st 2024

tripa ida

see susto.