— Education & IQ
Average IQ by educational attainment
Cognitive ability by level of education completed, from high school non-completers to PhD holders. These are statistical averages reflecting selection effects, not causal claims about education's impact on IQ.
| Level | Avg IQ | Percentile |
|---|---|---|
| High school dropouts | 87 | 19th |
| High school graduates (no college) | 97 | 42th |
| Some college (no degree) | 104 | 61th |
| Bachelor's degree holders | 113 | 81th |
| Master's degree holders | 117 | 87th |
| PhD holders | 125 | 95th |
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