Back in the 60s I took a course in testing which included IQ tests.
One thing which stuck in my mind was that boys and girls both scored nearly the same with girls just barely doing better.
On the other hand, People with exceptionally high IQs favored males by a huge number.
That’s actually well known and well documented. The mean on IQ scores for both sexes is about the same, but the variance is much larger for men: there are more “average” women, and more men who are both very intelligent and very stupid.
Women are clustered, when it comes to IQ. They have less mentally challenged, as well as less geniuses. Men, however, are more widespread in their distribution of intelligence.
I believe I read somewhere that males dominate on both ends of the IQ test.