There is no way the SAT is a purely IQ test, when i didn't get a hot score on my first SAT, i practiced for 1 week straight and substantially improved my scores (like 300 points range). The way i liken this to is if a MLB pitcher throws the same pitch at the same velocity and i know this ahead of time, i could practice for a year and when the time comes i could hit that ball. Does that mean i'm a major league level batter? Heck no, it is the same way with the SAT's, Leetcode and other tests, they measure how much you want it more than raw IQ.