SAT scores and IQ were correlated with socioeconomic status even before there was an essay section on the SAT. Dude, if there is an expensive magic pill that I can give my children in 11th grade to make them do better on their SAT, SAT subject tests, AP exams, etc., please let me know about it. We'll buy the pills in addition to doing what we are already doing. In reality, the advantages of higher SES children, to the extent that they are not genetic, are due to the environment that their parents foster over many years, both directly and by selecting the peer groups of their children.
