A psychologist administers an intelligence test to 100 fourth graders. One month later the psychologist returns and re-administers the test. The psychologist is probably interested in
Correct answer: D. the reliability of the test.
- A. the validity of the test.
- B. an operational definition of "intelligence."
- C. the creation of a "culture fair" test.
- D. the reliability of the test.
Explanation
Giving the same test again after one month allows the psychologist to examine test-retest reliability, or the stability of scores over time. Validity concerns whether the test measures intelligence rather than whether scores remain consistent.
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