The NFL on Wednesday pledged to halt the use of “race-norming” — which assumed Black players started out with lower cognitive function — in the $1 billion settlement of brain injury claims and review past scores for any potential race bias.

Literally every study shows that brain size is smaller and IQ is lower. If you are doing an IQ test to assess brain damage you need to know what the starting point was.

I'd suggest looking at school grades though. Way fairer.