The age-related decline in abstract reasoning speed and working memory efficiency reflects a reduction in:
AFluid Intelligence ($G_f$)
BCrystallized Intelligence ($G_c$)
CSemantic Knowledge
DVocabulary Range
Explanation
Fluid intelligence peaks in early adulthood and gradually declines with age, unlike crystallized intelligence which remains stable or improves.
Exam Relevance
- Topic: Intelligence & Aging
- Subtopic: Cattell Horn Model
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