Relatively knowledge-independent is not the same as absolutely knowledge independent. Familiarity with basic mental arithmetic, a decent vocabulary and certain

Relatively knowledge-independent is not the same as absolutely knowledge independent. Familiarity with basic mental arithmetic, a decent vocabulary and certain types of pattern all going to improve your ability to answer different forms of IQ test, especially if you're somewhere in the middle of the distribution, and we're talking average differences of a couple of percentage points here.