I can't see that page, but I know of one major IQ study from quite a few years ago now which gave, IMS, a 0.12 of an IQ point lead to women.

Iirc, the main difference that's been found is in standard deviation, with women having a lower SD in IQ scores than men. There seems to be a fair bit of bad science in gender studies though, so I couldn't say how strong that evidence is.