— MBTI & IQ Research
INTP IQ — what's the average for The Logician?
The average reported IQ for INTP (The Logician) across published MBTI cognitive studies sits around 128 — placing the typical INTP in the 97th percentile of the general population.
INTPs typically post the highest average IQ scores across MBTI studies. Dominant Ti (introverted thinking) maps onto formal logic and abstract reasoning tasks.
Why INTPs tend to score where they do
MBTI type is not a measurement of intelligence — it's a personality typology rooted in Jung's cognitive function theory. But certain dominant function patterns correlate with cognitive task performance:
- Introversion — tends to favour deep, sustained processing of abstract material
- Intuition (N) — correlates with strong fluid reasoning and pattern recognition on IQ tests, which is part of why NT types consistently score highest
- Thinking (T) — correlates modestly with logical and matrix reasoning task performance
- Perceiving (P) — has the weakest individual correlation with IQ; matters more for working style than raw ability
The honest caveat
Average IQ by MBTI type is a statistical tendency, not a rule. The standard deviation within any single type is typically 12-15 IQ points — which means there are INTPs scoring well above 145 and INTPs scoring below 90. The type tells you nothing about any individual's actual cognitive ability.
If you want to know YOUR actual IQ rather than the average for your MBTI type, take a properly calibrated test that uses real psychometric scoring (IRT 3PL Bayesian MAP estimation) rather than a quick quiz.
How INTP compares to other types
- INTJ — average IQ 127 (The Architect)
- ENTJ — average IQ 122 (The Commander)
- ENTP — average IQ 121 (The Debater)
- INFJ — average IQ 120 (The Advocate)
- INFP — average IQ 117 (The Mediator)