I read the entire paper (all ya’ll sci know hub where bz to find it). The methodology seems solid and the sample size is large. The researchers found to quote the abstract that, “Romanian data show no support for the sex differences in either mean values or variance of scores which were reported by other studies.”
My guess is that if there are any sex-related intelligence differences that they are small and swamped by the effects of culture, priming effects, stereotype threat and other factors.
Since intelligence as expressed by humans in the modern context appears to be a re-purposing of the social comprehension mechanisms (and perhaps a few other modules glommed on), I don’t see any reason to believe women and men would differ all that much.
I was however surprised to see the SDs being so similar, but the data seems reliable and the paper is actually well-written as such things go.