matched-pairs t test

a statistical procedure used to test for significant differences between the two sets of data obtained from a matched-pairs design. For example, a researcher could use a matched-pairs t test to assess whether relationship satisfaction significantly differs between two sets of individuals who have been matched for age and gender, where one set has been married for 5 years and the other for 10 years. Also called paired-samples t test.

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Psychology term of the day

January 2nd 2025

brain fingerprinting

a forensic technique that uses neuroimaging (e.g., functional magnetic resonance imaging) to match brain activity of control subjects with that of possible criminal suspects when both are viewing crime-scene details. The technique is based on the theory that certain sensory-perceptual brain activity would be expected to become activated in an individual familiar with the crime’s details but not in an individual unfamiliar with them. [developed by Lawrence A. Farwell, U.S. scientist]