It was established in a previous post that Black females have higher average IQ’s (+2.4 points) than Black males. At the higher end, the difference is much more dramatic. There are twice as Black females as males with IQ’s over 120. There are five times as many Black females as males with IQ’s over 140.
One thing I am looking at is that maybe Black females were brighter than Black males fresh off the boat.
In Africa, there were gender differentials in sexual selection.
Black males were selecting for high testosterone. A side effect of this was lowered intelligence.
Black females were not under any particular selection pressure for intelligence at al. African males did not care if the females they mated with were intelligent or not. It didn’t matter. Hence the females’ intelligence was simply “average” for the or what would be expected for the race where there no negative pressure on the males.
The differences were there from the moment they stepped off the boat, an African legacy, and are still with us.
Just a hypothesis.
