interitem correlation

the degree of correlation between each test item in a set, used as a measure of the internal consistency of a test and thus of its reliability. For example, a participant’s responses to each item on a 10-item test could be correlated with his or her responses to every other item on the test to determine the extent to which the items reflect the same construct.

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Psychology term of the day

December 22nd 2024

Ruffini’s corpuscle

a type of sensory-nerve ending in the subcutaneous tissues of human fingers. Ruffini’s corpuscles are believed to mediate sensations of skin stretch, motion detection, and hand and finger position. Also called Ruffini’s ending. [Angelo Ruffini (1864–1929), Italian anatomist]