first off recentering sucked, since it added like 100 to all the average and low people. High scoring types really didnt add that much, maybe like 40. Anyways, you get like 400, since you know if you answer a question wrong you get like 1/4 off or something. So if you get them all wrong you could get a 0. If they didnt start you with any you could get like negative which would be sad. SATS measure logical thinking skills, like how to solve problems. How easily you can cancel out logically wrong answers, and comprehend. Kids these days barely can solve those dreaded "word problems" in math, that it is not unexpected that they would do so bad on average.
Assuming you had a big enough vocabulary to read all the words in the questions which most people who take the test dont, since well people now can barely read at a decent speed let alone have a vocabulary compared to the 60s. Public school is basically shove crap up your ass, memorize it all, and test on it, and do some BS homework along the way. Good teachers scare their kids more and make them work harder, but most of them don't deviate from the shove material up ass method.
And its not supposed to be a test that says how well you'll do in life. Its supposed to be for how well you do in college, only because people who score more GENERALLY do better , and there is a high corellation. I'm a lazy ass and have always been and i think that you do have to work hard to do well, pure mental talent will only get you so far. Plus gifted people generally dont wanna work as hard, since they can do whatever they are gifted at so easily that they are not accustomed to working hard (my theory anyways). Also as far as i know , its by 10s. Both of those guys didnt score all that high, geniuses dont become politicians. Imaging how evil and cunning a genius would be as a politician, scary huh? A genius wouldn't contradict himself as much as these two have