I wonder about various kinds of protestants and fringey groups like JWs, Mormons, Christian Scientists, Scientologists etc. Cults tend to prevent free thinking but on the other hand, some groups highly emphasize education (BYU for example/Utah is not poorly educated but then again has lower black/latino population).

I also wonder if a test can be made with all kinds of criteria, then selects criteria which favor a desired group ordering. The reason I mention this is due to the same problems with various kinds of autistic vs non-autistic performance tests with language, spatial ability etc. That said, it doesn't surprise me if some of these results were unbiased/true. Any doctoring or pre-design testing would be bias. I can't make a judgement or keep an opinion without more information regarding the test itself. Not that I would try to spot problems but so I could relieve me worry that there is some glaring problem not seen by most. (autistics lives are often full of seeing everything differently)