matching to sample

a conditional-discrimination procedure that involves both successive discrimination and simultaneous discrimination. Each trial begins with presentation of a sample stimulus. Once the organism responds to that sample, two or more additional stimuli appear, only one of which matches the sample. Reinforcement is contingent on responding to the stimulus that matches. See also arbitrary matching to sample; delayed matching to sample; oddity from sample.

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Psychology term of the day

January 24th 2025

rachischisis

rachischisis

n. a congenital fissure of the spinal column, as in spina bifida.