[sascha_sl]

IQ in particular is a measure of very specific trainable skills. Particularly the harder part of IQ tests are extremely prone to cognitive bias by the authors though, where they start measuring neurotypicality rather than problem solving ability.

The problem is that these tests do not sell themselves as "just one data point", and even if they did, you'd have to do so many other things to compensate for the shortcomings of standardized IQ tests, they're really not worth doing in the first place.

IMO the best way to assess fit is to ask someone to handle a hypothetical, or to ask for previous experiences fitting a problem or situation.

[ponow]

Of course get to know the candidate as much as possible before hiring, but if you had to pick your candidate based on a single number, you truly don't think IQ isn't way up there as one of the more usefully discriminating ones?

[samhw]

I don't think anyone can doubt that it's likely to be predictive of success. There are sheafs of papers on that: e.g. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4557354/, though that paper also discusses confounding factors. My bigger worry is that I can't imagine any of our candidates assenting to an IQ test (outside of Scandinavia where it sounds like it's the norm).

[sascha_sl]

Absolutely not.

(And I would refuse to pick a candidate based on one number. No good can come of this.)