This is an in-dept, thought provoking and well researched post, the rating and measurement of the intelligence level of one sex against another has sometime ago caused a serious argument which eventually went unresolved in the organization in work.
Personally, I think men are better in arithmetic and technically inclined fields than their female counterparts. This believe however has no scientific evidence as its was deduced from analysis of my environment.

Again, I know that there are a lot of factors that must be considered before a generally accepted and evidence based conclusion could be reached.