Convergent and discriminant validity
A new anxiety scale correlates strongly with an established anxiety scale and weakly with a measure of intelligence. These results provide evidence of:
Answer C: explanation for every choice
A
Test–retest reliability requires giving the same test twice to the same people.
B
Predictive validity requires the scale to forecast a future outcome.
C
Correct. Correlating with measures of the same construct (convergent) and not with unrelated constructs (discriminant) supports construct validity.
D
Face validity is whether a test appears, on its surface, to measure what it claims.
TakeawayConvergent: correlates with similar measures. Discriminant: doesn't correlate with unrelated ones.
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Reviewed 2026-11-05 by a medical student. Spot an error? Report it with question ID ps156.