Comment by MrSkelter

IQ doesn’t measure intelligence. If anything it measures how well a person integrates the educational methodology they have been exposed to.

At best - and it’s a stretch - IQ correlates with intelligence sometimes. It’s far from a reliable measure though.

The problems in testing are obvious. You can depress someone’s results simply by changing the language used in the questions. I.e. you can make Americans score worse by using British English. That’s nothing to do with innate intelligence.