The study:
https://www.sciencedirect.com/science/article/abs/pii/S016028962200023X
The stated purpose:
we investigated whether individuals with IQs ≤ 90 who completed college experienced the same social and economic benefits higher-IQ college graduates did.
The hilarious accidental money shot:
Although most individuals with IQs ≤ 90 did not have a college degree, the rate at which they completed college had increased approximately 6-fold in men and 10-fold in women relative to rates in the previous generation.
So the researchers were trying to instill confidence in their sample size, but they inadvertent revealed what most of us have suspected for years: colleges are rubber stamping degrees for stupid people in general and stupid women in particular.
Given average white IQ is ten points higher than 90 while average black IQ is five points lower, it’s probably safe to assume that most of these cognitively challenged college grads are black women a.k.a. the most insufferable and belligerent demographic on the planet.
We’re fast tracking literal retards into positions of authority and influence because muh racism. Bodes well!
I remember being remarkably startled and disappointed at how low-bar the expectations and material in college were compared to high school. And that was around 15 years ago. It actually managed to kill a lot of my motivation since I didn't feel challenged and it became clear how much of the entire experience was a pointless gatekeeping process with a lot of mindless busy work.
The issue is the intelligence involved. Education is designed to promote memorization which is the least useful form of "intelligence". Actual people that think do worse in university than people who can't think but can regurgitate.