Not saying it's one way or ther other, but hypothetically someone could be using some IQ statistics, even if there are issues regarding data collection, : http

Not saying it's one way or ther other, but hypothetically someone could be using some IQ statistics, even if there are issues regarding data collection, : https://en.wikipedia.org/wiki/Race_and_intelligence https://en.wikipedia.org/wiki/Race_and_intelligence Yes, obviously these statistics would not definitely tell anyone if there is any difference in actual genetic races, or if the factors are socioeconomic, but for someone looking for job candidates it would actually make no difference, since IQ is not generally easily changed or trained in a developed adult. Of course, they could also just be using their own personal experience and claim that they are basing their beliefs on it.