[jmromer]

> (they hope) is closely related to, or correlated with one's ability to perform the job. The idea is that if one can do these sorts of problems, one can probably do the actual job at hand

This is a claim about the intentions behind these practices.

Intentions aside, the whole point of this perennially recurring discourse is about effectiveness — that certain overused methods of filtering job candidates are ineffective on their own terms — and negative side effects — that they're biased against people with non-traditional / from underrepresented backgrounds.