A test developer creates a new instrument to measure depression. He correlates this instrument with an existing test that measures anxiety. The test developer hopes to not find a high correlation, thus assuring the integrity of the construct he is measuring. This type of validity is called:
a. factor analysis validity.
b. criterion-related validity.
c. convergent validity.
d. experimental design validity.
e. discriminant validity.
Answer: e. discriminant validity.
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