Which of the three measures of fluid intelligence decline steeply throughout adulthood?

Name: Which of the three measures of fluid intelligence decline steeply throughout adulthood?
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Question

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Perceptual speed is the measure of fluid intelligence that declines steeply throughout adulthood. Numeric ability and spatial orientation also decline with age, but not as steeply as perceptual speed. Vocabulary is a measure of crystallized intelligence, which actually increases throughout adulthood.

Which of the Three Measures of Fluid Intelligence Decline Steeply