It only started 2011 at the earliest, and seems like the bulk of it was 2015-2017, so you won't have much data yet; most of those kids are still in college. You

It only started 2011 at the earliest, and seems like the bulk of it was 2015-2017, so you won't have much data yet; most of those kids are still in college. You could look at the GPA I suppose. It's also an interesting ethical question; what do the universities do with the kids? Were any of them unaware of the scheme? I read that the test-taker would take the test "with" the kid... so presumably they do some kind of paper mixup at the end. It's conceivable that the kid might not even realize their parents have paid somebody to take their test at the same time as them.