Question

Schaie's cross-sequential research on intellectual development demonstrated that _____. there is a decline in most abilities after age 30 cohort differences make it appear that older people are more intelligent than younger people women are smarter than men intellectual ability is usually maintained throughout adulthood

Answer 1

Schaie's research found that intellectual abilities are generally maintained throughout adulthood with crystallized intelligence remaining stable or improving. However, later life may see a decline in fluid intelligence. Mental and physical activities can mitigate cognitive decline.

Step-by-step explanation:

Schaie's cross-sequential research on intellectual development demonstrated that intellectual ability is usually maintained throughout adulthood. His research underscored that while physical abilities may peak and then begin to decline, cognitive abilities, especially crystallized intelligence, often remain stable or even improve with age. This stability extends from early adulthood into middle adulthood. Nonetheless, in later years, individuals may experience a decline in fluid intelligence, which includes processing speed, reasoning, and memory.

Indeed, cognitive decline in later life is not inevitable for everyone. Engaging in mentally and physically stimulating activities has been documented to help reduce the risk of cognitive decline, mild cognitive impairment, and dementia. It is important to note that individual variations exist, with some people maintaining high levels of cognitive function well into old age, as illustrated by exceptional cases of active and fit seniors.

Answer 2

The research demonstrated that individuals improve most mental abilities during adulthood and then experience a gradual decline.
After people surpassing the mid-age, regeneration of the brain cells will also start to decline, which resulted in the impairment of cognitive ability that played a crucial role in our analytic ability.