Sullivan makes the following argument:
Yes, the testing is rigged. We know the testing is rigged. Because IQ itself is a construct. IQ stands for "intelligence quotient". Basically you take the score and divide the age.
But what are the questions? Most IQ tests test certain forms of logical thinking and critical skills. Many test verbal knowledge. But they use norms and terms found in the majority culture. So there is a bias in the testing.
Secondly, the idea of a fixed IQ is bogus. There is no such thing. There are multiple forms of intelligence, multiple ways of thinking. IQ tests capture very few of them.
Most educators don't put a ton of stock in IQ tests, because they don't tell you a whole hell of a lot. The reason SATs are important, is because they allow a college admissions office a chance to say "no" without having to consider all 50,000 applications. SATs don't predict success in school or in life. IQ scores are also pretty meaningless. Most of them test scholastic preparedness.
When people start putting a lot of stock in a flawed metric to justify odious ends, chances are they are looking for reasons to reach that odious ends.