If both depressed and non-depressed individuals received similar scores on a diagnostic test for depression, it is said that the test ______________________?
Correct answer: B. is not valid
- A. has not been standardized
- B. is not valid
- C. is not reliable
- D. has not been factor analyzed
Explanation
A valid diagnostic test should distinguish people who have depression from those who do not, so similar scores indicate poor validity. Reliability concerns consistency of measurement, which can exist even when a test measures the wrong thing.
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