zlacker

>>azhenl+(OP)
This is Berkson's Paradox. Even if coding competition performance correlates positively with job performance in the general population (which it certainly does, given that most people can't code), selecting for this attribute in the hiring process leads to a negative correlation among those hired.

Great write-up by Erik Bernhardsson, CTO of Better, here: https://erikbern.com/2020/01/13/how-to-hire-smarter-than-the....

>>jaredt+g2
Simple analogy. There is no correlation between height and salary across NBA players.[1]

The naive conclusion would be that height has nothing to do with basketball ability. The real answer is that markets are efficient and are already correcting one important feature against other predictors. Steph Curry wouldn't even be in the NBA if had the shooting ability of Gheorghe Mureșan.

[1] https://rpubs.com/msluggett/189114