I have no definite opinion of IQ tests. The simple bubble-type tests are too narrow in scope to be of much value, I suspect. Some years ago, I was given an individually-administered WAIS-III test. I was impressed with the wide range of cognitive skills that it tested. I’ve never made any serious study of the subject though.
So with that proviso, I offer the following fascinating graphs of IQ distributions of various professions. (Click to view the full-size version.)
Figure 11. Wisconsin Women’s Henmon-Nelson IQ Distributions for 1992-94 Occupation Groups with 30 Cases or More
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Figure 12. Wisconsin Men’s Henmon-Nelson IQ Distributions for 1992-94 Occupation Groups with 30 Cases or More
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(I originally found that on Neatorama, but it’s actually from Hauser, Robert M. 2002. “Meritocracy, cognitive ability, and the sources of occupational success.” CDE Working Paper 98-07 (rev). Center for Demography and Ecology, The University of Wisconsin-Madison, Madison, Wisconsin. The PDF from which the graphs are taken is available here.)
