IQ tests in general have been judged pretty poorly, I'm not sure I agree with them at all. They are certainly racist and they are certainly slanted towards people who do well at test-taking. I've scored in the 130-150 range on all the tests I've taken.
I voted the lowest score range, because I have always been a good test taker, and I'm a WASP, so its likely the tests are slanted in my favor.
As far as accuracy I count myself among the people who don't put much stock in it, for the above reasons, and for the fact that I've met people who were total idiots in many ways, but they were absolute geniuses in a particular subject that interested them. I just don't see how a standardized test can capture that kind of variance-you have to be brilliant at all (or most) things to be labeled a "genius" and I'm not sure I agree with that.