IIRC studies have found IQ is more strongly correlated with job performance than most other things people use. BUT there is one exception—tests that mirror the actual work. Which of course is more legally defensible, in addition to being a genuinely better measure. If I were hiring people, I would probably do interviews just to not seem weird to applicants, but all the real selection would be based on performance testing.
IIRC studies have found IQ is more strongly correlated with job performance than most other things people use. BUT there is one exception—tests that mirror the actual work. Which of course is more legally defensible, in addition to being a genuinely better measure. If I were hiring people, I would probably do interviews just to not seem weird to applicants, but all the real selection would be based on performance testing.