I did not independent research one time because I found the debate to be interesting.
In tests that are adjusted for culture and education, in the US and all over the world...there seems to be a gap.
Of course, unless you were looking at results from the 60’s the authors would go overboard telling you all of the reasons why this “might” be true.
The data supported the gap. No one wanted to believe the data.
Should read, “I did some”, not I did not.
I always heard about the IQ gap. Honestly, I was a true believer that humans are human. I believed that we all would have the same IQ in a world where there was NO racial differences.
Do the research. Then you will never talk about it in public.
Also keep in mind that averages don’t apply to any single members of the cohort.