alleryWho introduced fluid and crystallized intelligence in 1943?
ACharles Spearman
BArthur Jensen
CRaymond Cattell
DJ.P. Guilford
Answer & Solution
Correct answer: C. Raymond Cattell
1. Recall the fact: Raymond Cattell split general intelligence into gf and gc in 1943.
2. The option "Raymond Cattell" matches it.
3. Why the others fail: Spearman proposed g and s; Guilford and Jensen proposed other models.
_Source: Wikipedia, "Fluid and crystallized intelligence" (CC BY-SA, rev 1354074666), section "Lead section"_
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