Final answer:
In late adulthood, individuals experience a decrease in fluid intelligence, which includes information processing abilities, reasoning, and memory but our crystallized intelligence tends to hold steady or improve.
Step-by-step explanation:
In late adulthood, individuals experience a decrease in fluid intelligence, which includes information processing abilities, reasoning, and memory.
These cognitive processes become slower as we age. However, our crystallized intelligence, which encompasses the information, skills, and strategies we have gathered through a lifetime of experience, tends to hold steady or even improve.