Mensa equates pre-1980 military GCT test scores to IQ. Therefore, it should be easy to determine whether Carter, the Bushes, and Kerry are in the top 2% in terms of IQ. (Oh, yeah, I forgot; Kerry won't release his GCT test score.)
Is there any correlation to post-1980 military GT scores?
Actually, I think Steve Sailer has an article where he has the miltary OCS scores for both Bush and Kerry (that part of Kerry's record did come out), does some psychometric investigation to equate the raw scores to IQ, and comes out with Bush a couple of points ahead. I'll try to find the link.
http://www.vdare.com/sailer/kerry_iq_lower.htm
It goes into excruciating detail about the scores of both men, and how to get IQ from them.
Here is the conclusory material:
"So, if you take the average of Bush's percentile scores on the three composites most similar to the test Kerry took, Bush scored at the 67th percentile, a little better than Kerry's 50th percentile.
This isn't an apples to apples comparison, so you can't say that Bush would have done better than Kerry on the same test. But this doesn't provide any evidence in support of the common assumption that Kerry has a much higher IQ. The standardization report by Miller and Valentine says that the "officer population" that provided the percentile scores was about one standard deviation better than the average 12th grade male on the Verbal subtest and about two standard deviations better on the Quantitative test.
This suggests that the 50th percentile among the norm group of Air Force Academy applicants had an IQ of about 123, thus putting Bush in the 125-130 range—a little better than his SAT score would imply."