— Occupational IQ research

Research Scientists — average IQ & cognitive profile

Published occupational IQ research consistently places research scientists at an average IQ of around 130 — the 98th percentile of the general adult population. This is one of the higher-IQ professions on record.

Why research scientists cluster at this level

Research scientists (PhDs in physics, chemistry, biology) consistently average among the highest IQ scores of any profession. Doctoral programmes select for top-decile fluid intelligence.

What this number really means

An occupational IQ average is a statistical mean, not a hiring criterion. The within-profession standard deviation is typically 10-15 IQ points, which means:

• There are highly successful research scientists scoring well above 145
• And highly successful research scientists scoring well below 115
• Conscientiousness, domain knowledge, emotional regulation, and motivation account for far more variance in actual job performance than the difference between, say, IQ 115 and IQ 125 does

How to interpret your own score against this average

If you're considering this profession or already in it, here's how to read a personal IQ result in context:

• If you score 120–140: you're right in the typical range for research scientists
• If you score above 145: you have meaningful cognitive headroom; you'll likely find the abstract demands of the role easier than peers
• If you score below 115: the profession is still entirely accessible to you — many research scientists succeed at this level — but you may rely more on persistence, structured systems, and specialisation than peers do

Related profession comparisons

• Philosophers — average IQ 129
• Physicists — average IQ 132
• Mathematicians — average IQ 132
• Surgeons — average IQ 127
• University Professors — average IQ 126

Related reading

• What does an IQ of 130 mean?
• Full IQ-to-percentile chart
• What is the average IQ?