Yeah no the study was definitely not about test prep getting people from 2370 to 2400 lmao. There is no test prep service in the world that will claim they can get you from a 2370 - 2400.
The mean SAT score is ~1600, so it's a 30 point increase for students scoring in that range.
If you're already capable of getting a 2350+, that means you know everything and it's just down to variance and not making a silly mistake.
A perfect 2400 score is actually really rare. From a stat in 2009, the collegeboard reported that 1 student out of every 5,000 taking the SAT gets a 2400.
I took it back when it was out of 1600 and missed a perfect by one question; however I don't think I was exceptionally brilliant or anything.
The SAT does not operate in the way the LSAT or some other computerized tests work where it keeps giving you harder and harder questions until you start getting them wrong.
I suspect more people could get a 2400 if those who get really close bother retaking it.
The mean SAT score is ~1600, so it's a 30 point increase for students scoring in that range.
If you're already capable of getting a 2350+, that means you know everything and it's just down to variance and not making a silly mistake.
A perfect 2400 score is actually really rare. From a stat in 2009, the collegeboard reported that 1 student out of every 5,000 taking the SAT gets a 2400.