Question

question 11

at about what age does crystallized intelligence peak?

65 years
50 years
20 years
40 years

Explanation:

Define crystallized intelligence

Crystallized intelligence refers to the accumulation of knowledge, facts, skills, and experiences acquired throughout a person's lifetime. It is heavily influenced by education, culture, and formal training.

Contrast with fluid intelligence

Unlike fluid intelligence—which involves abstract reasoning, processing speed, and problem-solving in novel situations, and typically peaks in early adulthood (around age 20)—crystallized intelligence continues to grow and build over time.

Identify the peak age

Because crystallized intelligence relies on accumulated experience and lifelong learning, it does not decline in early or middle adulthood. Instead, research in developmental psychology shows that crystallized intelligence continues to increase, peaking much later in life, typically around middle to late adulthood, specifically around 65 years of age, before showing any potential gradual decline in very late adulthood.

Answer:

• (A) 65 years (Correct answer)
• (B) 50 years
• (C) 20 years
• (D) 40 years