And I would make it very clear that putting in more than 30 minutes of work, timed, is a disqualifier, and I would sleep well at night clearing all those people out of the queue.
You will bias heavily along some kind of axis, preferred previous employers or location, age, etc.
You add a lot of bias into the system by trying to further scrutinise otherwise meaningfully qualified people on paper.
Do not mix up opportunity and capability.
If you have two groups of people, one with a low but nonzero signal that they can do something, the other with no signals, is it still a good idea to use that signal?
You'll get fewer bad employees, but you also discard many capable people who haven't had the opportunity to even try for your signal.
It still is a signal, albeit a weak and highly inequitably distributed one.
No, in fact I see no indicators at all that it is the case.
> If you have two groups of people, one with a low but nonzero signal that they can do something, the other with no signals, is it still a good idea to use that signal?
It may or may not be. It depends on the quality of the signal itself, its reliability, repeatability, and if that signal blinds you from other indicators or maybe even leads you astray.
Having a signal doesn't mean it's particularly useful. Example: like triggering an alert on a VMs cpu utilization. It's certainly a signal but rarely is it good for anything or actionable.
Hint: you don't even need to evaluate most candidates at all. Random sampling is sufficient and provably bias free.
> Whenever I get a stack of resumes, I throw half of them in the trash
> I sure don't want unlucky people on my team.
What do you send them as a response "sorry, we're going ahead with other applicants" - "you have not been selected this time" -- what happens if you start needing to dig through that pool of now rejected candidates?
Peak humanity.
I acknowledge that I am reaching back out, and they may not be available.
Like a human does.
> Reminds me of something I heard once.
>> Whenever I get a stack of resumes, I throw half of them in the trash
>> I sure don't want unlucky people on my team.
I was actually about to make the same joke.
So about six minutes for the problem itself, then?