"Intelligence quota tests" may be the biggest misnomer ever. The Flynn Effect best demonstrates that the WISC has a tendency to test people's knowledge rather than their intelligence.

Even harder for scientists, though, is determining what is purely intelligence and what is purely knowledge. If you ask a person what constitutes intelligence, critical thinking skills, the ability to reason, comprehend, analyze, etc., will usually come up. But... they're skills. To some extent, those abilities have to be taught, coached, and nurtured at some point in cognitive development.

This gap in critical thinking skills comes up again in connection with No Child Left Behind. Our multiple choice testing has a numbing effect on these skills. It's a type of testing that is not as thorough as, say, an essay test where a student must back up an argument with examples and so on. Instead, we're stuffing our kids with factoids to memorize. I've been tutoring kids for years and I already see this trend hurting a lot of kids' writing and reasoning skills.