Individual differences in crystallized intelligence increase with age because maintaining crystallized intelligence depends on

a. one's IQ level.
b. normative biological aging of the brain.
c. lifestyle factors such as diet and exercise.
d. being in situations that require its use.


ANSWER: d

Sociology

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Indicate whether the statement is true or false

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A) $3.3 million B) $300 million C) $3.3 billion D) $30 billion

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Fill in the blanks with correct word

Sociology

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