at the present stage of research in adult cognition, which of the following statements has the most research support? A. intellectual abilities inevitably decline from adolescence onward B. each persons cognitive development occurs in a unique context influenced by variations in genes, life experiences, and cohort effects C. some 90 percent of adults test in cross sectional studies show no decline in intellectual abilities until age 40 D. intelligence becomes crystallized for most adults between 32 and 41
at the present stage of research in adult cognition, which of the following statements has the most research support?
A. intellectual abilities inevitably decline from adolescence onward
B. each persons cognitive development occurs in a unique context influenced by variations in genes, life experiences, and cohort effects
C. some 90 percent of adults test in cross sectional studies show no decline in intellectual abilities until age 40
D. intelligence becomes crystallized for most adults between 32 and 41