If a psychologist administers an intelligence test to 100 college freshmen and a month later returns and re-administers the same test, the psychology is determining this test's criterion validity.

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The psychologist is determining the test's reliability, specifically its test-retest reliability, by assessing the consistency of the test results over time. Criterion validity involves comparing the test to an external criterion to see if it measures what it is supposed to measure.

If a Psychologist Administers an Intelligence Test to 100 College