It is taking me a while to process this tweet. HBCU is historically black college or university. The SAT scores of people accepted HBCUs is presumably lower than some other colleges. So for some reason the poster is assuming that the SAT scores of grads from HBCUs are lower. That's already not founded. If SAT scores are good predictors of success at HBCUs, for example, one might expect most grads from an HBCU to have a higher than average SAT score as compared to acceptance.
The author of this post goes on to say that since IQ is correlated with SAT, pilots hired from an HBCU will have a lower IQ than other pilots - because the average HBCU ACCEPTANCE SAT score is lower than what would be CORRELATED with the average pilot IQ. We're getting pretty far afield already with a lot of mistakes, and I'm questioning the IQ of the person who posted this. The acceptance SAT score is not acceptance IQ, and the grad IQ for people ultimately hired as pilots is definitely not the average acceptance SAT score across the board. But they go on.
Since IQ is a predictor of job performance for some jobs, and those jobs share similarity with airline pilots, the presumption is that a low IQ pilot will... not perform well? The idea is that they'll crash the plane, but of course that isn't what's being measured by correlation between IQ and "job performance". Whatever that job performance study is, it probably has to do with a lot of things other than crashing a plane. I'm willing to place a bet that crashing planes is not even mentioned in the study at all. Just a hunch.
The author of this post doesn't actually know if plane crashes are more likely to occur with low IQ pilots. The author doesn't know that pilots hired from HBCUs have a low IQ. The author of doesn't even know whether the pilots hired from HCBUs have a low SAT score.
To complicate things further, your SAT score changes (a lot) depending on how much you've studied for it. You can bomb the SAT and then ace it. I bombed a section of the GRE (which is extremely similar) because I didn't study enough for it, and then took it again and aced it.The SATs are not a measure of intelligence.
I didn't study for the SAT, and got a lower score than my fourth grade (or whatever) IQ score would have suggested. I later studied for the GRE and took it twice. Bombed one section the first time because I mismanaged the test, then and had an almost perfect score on math, analytical, and a solid percentile score on verbal the second time. Which one of those scores should we assume represents me?
Fourth Grade IQ - High
SAT - Middle
GRE1 - High/Low/Middle (Math, Analytical, Verbal)
GRE2 - High/Highest/Middle (Math, Analytical, Verbal)
You could literally pick and choose (based on my skin color most likely) how smart you want to say I am based on any of those numbers, and make me out to be dumb, average, or super smart.
I've seen super smart grad school level engineers bomb the LSAT, so there's another test to throw into the mix.
TL;DR - Sorry kid, you can't be a pilot because you went to a university that allows in people with lower SAT scores than I'm comfortable with - because I have hangups on SAT scores. [/s]