Meh, IQ is potential, not capability, to do a job. I don't find this argument convincing. What about all the literal geniuses who have no interest and never studied CS?
At least the graduate can show that he/she can commit to a multi-year long, sometimes boring, project successfully. A high IQ person could just leave your company after 6 months because "they're bored".
I’m not saying employers would hire solely based on IQ. That would be crazy. It’s just a screening measure. But so is educational attainment. Nobody gets hired because they have a college degree, but plenty of people don’t get hired because they lack a college degree.
Also, agree that educational attainment gives you more information about a candidate, but in terms of assessing intelligence, it is a coarser measure than IQ. I’ve hired a few people in my day, and there is huge divergence in intelligence among college grads. For lots of jobs it is useful to be able to distinguish between not-stupid, bright, and ridiculously smart. Educational attainment doesn’t really help with that, but IQ tests would.
At least the graduate can show that he/she can commit to a multi-year long, sometimes boring, project successfully. A high IQ person could just leave your company after 6 months because "they're bored".