Question

K. Warner Schaie's cross-sequential research on intellectual development demonstrates that _____.

A) there is a decline in most abilities after age 30
B) individuals improve in most mental abilities during adulthood
C) cohort differences make it appear that older people are more intelligent than younger people
D) women outperform men on most cognitive tasks

Answer 1

K. Warner Schaie's research demonstrates that individuals improve in most mental abilities during adulthood, although there is a decline in fluid intelligence in late adulthood. Mental and physical activity can delay cognitive decline.

Step-by-step explanation:

K. Warner Schaie's cross-sequential research on intellectual development demonstrates that individuals improve in most mental abilities during adulthood. Our cognitive abilities, such as crystallized intelligence which includes information, skills, and strategies accumulated through experience, tend to remain steady or even improve as we age. However, there is a decline in fluid intelligence, which refers to information processing abilities, reasoning, and memory, during late adulthood.

Mental and physical activity can help delay the onset of cognitive decline. Research has shown that adults who engage in mentally and physically stimulating activities experience less cognitive decline and have a reduced incidence of mild cognitive impairment and dementia.

Answer: B) individuals improve in most mental abilities during adulthood