F test

any of a class of statistical procedures, such as analysis of variance or multiple regression, that rely on the assumption that the calculated statistic—the F ratio—follows the F distribution when the null hypothesis is true. F tests are tests of hypotheses about population variances or of whether regression coefficients are zero.

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Psychology term of the day

January 23rd 2025

functional measurement

a procedure that measures the subjective experience of stimuli as that experience changes across different contexts. Two or more stimuli are presented in various combinations to an observer who assigns ratings to each. These ratings are then integrated according to a simple arithmetical law discovered by examining the way in which the observer’s ratings change when the combination of stimuli is changed.