Steve Hsu has found a very interesting table with the average GRE scores computed for various concentrations. He has also defined a linear map translating the average V-Q-A scores into a more familiar IQ scale. This convention looks natural to me and I will follow his scale although it is not guaranteed that it is equally calibrated as other IQ measurements.
Disclaimer: these cold numbers expressing typical IQ for different occupations must be interpreted very carefully. They don't necessarily imply anything. The outcome depends on the character of the question, discrimination, etc. Despite different numbers, all of us are equal. Blah blah blah. And so on.
The results are:
- 130.0 Physics
- 129.0 Mathematics
- 128.5 Computer Science
- 128.0 Economics
- 127.5 Chemical engineering
- 127.0 Material science
- 126.0 Electrical engineering
- 125.5 Mechanical engineering
- 125.0 Philosophy
- 124.0 Chemistry
- 123.0 Earth sciences
- 122.0 Industrial engineering
- 122.0 Civil engineering
- 121.5 Biology
- 120.1 English/literature
- 120.0 Religion/theology
- 119.8 Political science
- 119.7 History
- 118.0 Art history
- 117.7 Anthropology/archeology
- 116.5 Architecture
- 116.0 Business
- 115.0 Sociology
- 114.0 Psychology
- 114.0 Medicine
- 112.0 Communication
- 109.0 Education
- 106.0 Public administration
If you trust these numbers, one of the conclusions is that the economists are the brightest among the social scientists (rank 4) who are only followed by philosophers (rank 9). The philosophers are still brighter than political scientists (rank 17) who are smarter than the sociologists (rank 23). This list may confirm virtually all of your preconceptions about all these fields, at least it was my case. The only exception was medicine that I expected to appear in the upper half.