When studying intelligence in adults and how it relates to the aging process, longitudinal studies show
A)a decline in the ability to reason logically that begins in early adulthood
B)a decline in the amount of factual knowledge that begins in early adulthood
C)a decline in the ability to reason logically that begins in later adulthood
D)a decline in the amount of factual knowledge that begins in middle adulthood

Question

Quizplus · Accepted Answer

Longitudinal studies on intelligence and aging typically find that the ability to reason logically, or fluid intelligence, tends to decline in later adulthood, rather than early or middle adulthood. Factual knowledge, or crystallized intelligence, tends to remain stable or even increase with age.

When Studying Intelligence in Adults and How It Relates to the Aging