The correlation between IQ and job performance is typically weak[0] (weaker than the correlation between conscientiousness+agreeableness on job performance in some studies[1]) with a more modest correlation for "high complexity jobs".
Interesting excerpt from [0]:
> Finally, it seems that even the weak IQ-job performance correlations usually reported in the United States and Europe are not universal. For example, Byington and Felps (2010) found that IQ correlations with job performance are “substantially weaker” in other parts of the world, including China and the Middle East, where performances in school and work are more attributed to motivation and effort than cognitive ability.
Sorry about the PDF link to [1]. The APA link has a paywall otherwise I'd link there.
lll-o-lll
Sorry for not replying earlier, but I am really grateful for you providing those links. I had not known that the iq-job perf had been challenged and it means I need to adjust my priors when looking at candidates.
Interesting excerpt from [0]:
> Finally, it seems that even the weak IQ-job performance correlations usually reported in the United States and Europe are not universal. For example, Byington and Felps (2010) found that IQ correlations with job performance are “substantially weaker” in other parts of the world, including China and the Middle East, where performances in school and work are more attributed to motivation and effort than cognitive ability.
[0]: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4557354/ [1]: https://www.academia.edu/download/50754745/The_Interactive_E...
Sorry about the PDF link to [1]. The APA link has a paywall otherwise I'd link there.