Studies of changes in intelligence as a function of aging suggest that:
A)both fluid and crystallized intelligence tend to decline with age in adults
B)fluid intelligence increases with age, whereas crystallized intelligence does not
C)crystallized intelligence tends to decline with age in adults but fluid intelligence does not
D)fluid intelligence tends to decline with age in adults but crystallized intelligence does not

Question

Quizplus · Accepted Answer

Fluid intelligence, which involves the ability to think and reason abstractly and solve problems, tends to decline with age. Crystallized intelligence, which involves knowledge that comes from prior learning and past experiences, tends to remain stable or even increase with age.

Studies of Changes in Intelligence as a Function of Aging