I think it's true (not).
(article previously states men have larger skulls than women)True, mere brain size in itself is not as important as brain quality, but where the quality is the same the larger brain size has an advantage. Thus Science News, April 1, 1967, told of twenty African children who were so extremely undernourished in the first few years of their lives that "head circumferences...averages an inch less that the others, indicating smaller brain." And over the years all these were found to have verbal, mathematical and perceptual capabilities far below those of other children. Implicit in these findings is that man is advantaged by a greater brain size.Awake! 1967 August 22 p.27, 28
OK, I am not just posting that as a joke or yet another opportunity to grind my axe about the WTS' misongyny (although I do love to do that). I'm posting it as an example of the idea that men are smarter than women as it has been debated for centuries.
I read the article, Paul. It seems curiously vacant of supporting evidence and I'm wondering if it was a publicity stunt. Let us know if they do a follow up. It would be interesting to see.