[idkyall]

Supposedly IQ test have a slight positive correlation with workplace performance. I could see leetcode skills(or, put more broadly, algorithms knowledge) having a slight positive correlation with job performance, but as everyone knows it doesn't guarantee someone is a good or productive developer.

The flaw with the metaphor is that you can study for leetcode, whereas supposedly(can't find a good source on this) you can't really study for an IQ test. I had a weak comp sci background when I started doing leetcode interviews and would struggle with questions. I spent several months studying CLRS, cracking the coding interview, etc., and now I would say I am fine at most problems up to medium complexity.

[ninetyninenine]

Studying leetcode and IQ both correlate with better performance in leetcode.

There's no raw data to back either statement up, but both are very likely to be true via common sense.