Cognitive skills
Crystallized vs fluid intelligence
Fluid intelligence and crystallized intelligence describe different strengths that often work together.
Quick answer
The simple difference
Fluid intelligence helps with new problems. Crystallized intelligence draws on knowledge and experience you have already built.
How they show up
1
A new pattern puzzle leans fluid.
2
Vocabulary leans crystallized.
3
Strategy can support both.
4
Age and experience can affect them differently.
Why it matters
It explains uneven profiles.
It improves test interpretation.
It guides practice.
It reduces over-focus on one number.
IQFlow
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IQFlow gives a broader view of cognitive skills so strengths and gaps are easier to understand.