Slight correction, but IQ was adopted, not developed, by eugenics folks. It’s original purpose in Europe was strictly academic, to determine who might have trouble and need help in schools.

It’s a metric I don’t really want to defend, but it’s not useless; it does work in predicting traditional academic success. But that’s why we have alternative teaching methods for people with alternate ways of thinking.

Well not in texas the execute the mentally disabled anyway