deviation IQ

the absolute measure of how far an individual differs from the mean on an individually administered IQ test. This is the approach now most commonly used in standard IQ tests. A reported deviation IQ is a standard score on an IQ test that has a mean of 100 and a standard deviation specific to that of the test administered, usually 15 or 16 for intelligence tests. The test scores represent a deviation from the mean score rather than a quotient, as was typical in the early days of IQ testing.

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Psychology term of the day

January 31st 2025

lure

n. an incorrect item presented among correct items in testing memory, to serve as a distractor.