Don't think that's true. But I'm not aware of the location of accurate, up to date statistics.
Anyone?
Re: IQ tests
That’s an outright lie - based solely on my experiences over the last half a century.
It depends on the range you are looking at.
The median girl's score may be slightly higher than boys, but at the extremes, the boys dominate. There are a lot more very stupid guys, AND a lot more brilliant guys.
The so-called "glass ceiling" is more a reflection of the fact that there just aren't that many women who are as smart and driven as the top 0.1% of guys.