When researcher had the same individuals take an intelligence test that had been developed in 1978 and another test that had been developed in 1947, they found that
A) they scored about 8 points higher on the newer test.
B) they scored about 8 points higher on the older test.
C) they scored about the same on both tests.
D) some individuals scored higher on the old test, and some scored higher on the newer test.
Answer: B
Rationale: When participants took both the newer and older tests, they scored higher on the older test. Because each test was normed when it was developed so that a score of 100 was average, this suggests that average performance on intelligence tests increased overtime.
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