https://en.wikipedia.org/wiki/Griggs_v._Duke_Power_Co https://en.wikipedia.org/wiki/Griggs_v._Duke_Power_Co. It is very useful. This is why the military, polic

https://en.wikipedia.org/wiki/Griggs_v._Duke_Power_Co https://en.wikipedia.org/wiki/Griggs_v._Duke_Power_Co. It is very useful. This is why the military, police and even postal service use them. If you use an IQ test in your company, you will risk a lawsuit. The burden of proof is on you to prove how these skills are relevant, but in most cases they are only relevant because they are predictive of future performance, because they accurately measure cognitive ability. They do not resemble the tasks you will be doing in your job. My startup idea would be to higher some psychologists and lawyers and develop IQ test templates that are both effective at measuring g and demonstrably related to skills in each job. Because of the nature of g, this seems doable.