@Corwin- lol, I did not know that. But even so, I don't think his studies should be dismissed completely just because he is a racist. If he was going to forge the data, then I think that he would have made Whites the 'smartest' group. It is how he would use the data that seems to be where the hate comes into play, not the study itself.
I haven't really heard anything about him, besides the study and now the wiki page. Is he famous, or did you just happen upon this when searching him?
@Orthaic- "Race differences show up by 3 years of age, even after matching on maternal education and other variables," said Rushton. "Therefore they cannot be due to poor education since this has not yet begun to exert an effect."
I think he has basically the same argument as you, because the data showed that the Genetic side accounted for ~50% with the other 50% determined by culture/upbringing. Just like in any Nature vs. Nurture debate, they both play a significant role. There are going to be geniuses and idiots in all races, and I definitely don't think that anyone should assume that you are smarter just because of skin color.
Oh, and obviously the tests are somewhat biased, because IQ tests aren't always the best indicator for intelligence, and I think that these ones in particular were more geared towards western test takers.