SAT + grades is a stronger predictor of college performance than grades alone. AFAIK this is a pretty uncontroversial finding. For a review article, see Frey (2019), "What We Know, Are Still Getting Wrong, and Have Yet to Learn about the Relationships among the SAT, Intelligence and Achievement."
I think the guy that got a 2.9 in a school that was seriously focused on education is going to be better prepared for the 4.1 from a peace and love participation trophy school.
Are you missing “standardized” portion?
And being rich benefits GPA, extracurriculars, and college essays far more than it helps SATs where prep costs a couple hundred dollars and a month of weekends.
SAT prep materials are FREE at your local library (or high school library), anyone who is smart and has willingness to study - can study and nail this exam.
and SAT is very very easy exam nowadays, nothing compared to Indian/Chinese/Singapore exams
I wrote up a survey of people and distributed to classmates who had either taken the SAT more than once or had taken the PSAT and then the SAT. I asked them if they took a prep class and what kind.
The results strongly supported the meme.
There was a big gap between people who did and did not take prep classes. There was a small but statistically significant difference between the Princeton Review and Stanley Kaplan (I don't remember which one won) and there was a large gap between people who took group classes and those who had private tutors.
I didn't collect any demographic information but it was at a fairly expensive private school in Manhattan. Mostly white kids. The minority kids were mostly from prep-for-prep.
High school grades on the other hand are getting inflated now, because of parental pressure, now that colleges are abandoning standardized tests, and relying more on GPAs. High schools don’t even have a standardized curriculum. Comparing GPAs across high schools make no sense. Within the same school it may make sense though.
To properly compare standardized tests vs. an alternative you need the other half of the comparison.
At least poor people have a chance when it comes to standardised testing.