comparison

n. any appraisal of two or more groups in order to identify differences, such as that between the mean of a variable in one population and its mean in another. Comparisons may be planned in advance, as in a priori comparisons, or decided upon after data analysis has already begun, as in post hoc comparisons. Also called contrast.

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Psychology term of the day

January 20th 2025

achromatic interval

in vision, the interval of light intensity between the amount required for detection of a monochromatic stimulus and the amount required to perceive the color of the stimulus.