Yes, the IQ test does have an ugly history, I've seen the old photographs of Darwinists running around with calipers measuring skulls, craniometers I believe they called them. They believed cranial capacity dictated intelligence. Darwinism, Eugenics, Nazism and Progressivism were all rolled up together at the time. May still be.
Oh, they are still there. They just give it different names
On the FR the eugenicists are more up front. Which is a good thing given how insanely arrogant and dangerous they are.