The Research of Robert McCall, Which Evaluated the Stability of IQ

question 84

Multiple Choice

The research of Robert McCall, which evaluated the stability of IQ in a sample of 140 children, found that

• A)IQ is stable over time.
• B)about 50 percent of the sample had fluctuations in IQ that average 20 points.
• C)about 50 percent of individuals had increases in IQ.
• D)all individuals in the sample showed a decline in IQ.

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