orthogonal contrast

in a factorial analysis of variance, a set of nonredundant comparisons among the mean values for different samples. In other words, the set contains no overlapping information, so that the results from one comparison provide no information about the results of the second comparison. Also called orthogonal comparison.

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Psychology term of the day

November 16th 2024

subcortical dementia

dementia caused by damage to or dysfunction of the subcortical (deeper) structures of the brain that may be due, for example, to Parkinson’s disease. It is marked by cognitive slowing, memory impairment (specifically, poor encoding and retrieval but intact storage), visuospatial abnormalities, and mood and affect disturbances. Compare cortical dementia.