Earlier quoted context omitted.
> I'm not sure why employers must prove the relevance of IQ tests but not work sample tests If challenged in court, and if the work sample test is shown to have a disparate impact such that its use would be illegal discrimination if it were not tailored to the job, they do have to show this for work sample tests. Your premise is simply false. (OTOH, the disparate impact of IQ tests is more readily established by a pl…
Let's imagine that tomorrow I come up with a magical super-reliable method of interviewing, which works better for most jobs than existing specific methods. Then I'm fucked! My method will certainly have disparate impact (because it has nonzero correlation with IQ), be not very tailored to any particular job (because it's magical), and there will be numerous available studies (making it easier to sue me as you explai…
If you can demonstrate this is the case for the specific jobs where you want to apply it, you will then have no problem, even if it has a disproportionate negative impact on a protected class.