Multiple Choice
Which of the following best describes the conclusions about changes in average IQ with age drawn from cross-sectional versus longitudinal studies?
A) Both longitudinal and cross-sectional findings show similar significant declines in IQ scores beginning at about age 40 or 45.
B) Both longitudinal and cross-sectional findings show similar maintenance of IQ through old age.
C) Cross-sectional findings indicate maintenance of IQ scores well into old age, while longitudinal data indicate a decline in IQ beginning at about age 50.
D) Cross-sectional findings point to a decline in IQ beginning at about age 35, while longitudinal data point to much longer maintenance of IQ.
Correct Answer:
Verified
Correct Answer:
Verified
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