DO NOTE that the in the United States, the use of IQ tests for hiring is potentially legally fraught. A SCOTUS ruling[1] has found that IQ tests are assumed to

DO NOTE that the in the United States, the use of IQ tests for hiring is potentially legally fraught. A SCOTUS ruling[1] has found that IQ tests are assumed to disfavor minority employees, and therefore using them as a major factor in hiring decisions may run afoul of the Civil Rights Act. There are ways around this, but generally speaking you have to prove the specific test you are administering either does not disfavor minorities, or else show that it is directly related to the specific position you're hiring for. [1] https://en.wikipedia.org/wiki/Griggs_v._Duke_Power_Co https://en.wikipedia.org/wiki/Griggs_v._Duke_Power_Co. I am not a lawyer, do not take legal advice from randos on the interwebs. You should consult with a Real Actual Professional on how to deal with this risk. There have been both laws and court cases since the above that impact the ruling, which I am not qualified to analyze.