You've excluded external factors (society/tradition/etc...). What's left? - Some sort of intrinsic motivation (meaning in-born). So you are basically saying that women are genetically less than men predisposed to math (and to explain actual data (male/female ratio in math) you must assume they are much much less predisposed.
It is more likely that society/tradition/etc... do matter after all.
My point taken to an extreme is:
"It is not the consciousness of men that determines their existence, but on the contrary, it is their social existence which determines consciousness." - Karl Marx
It is more likely that society/tradition/etc... do matter after all.
My point taken to an extreme is:
"It is not the consciousness of men that determines their existence, but on the contrary, it is their social existence which determines consciousness." - Karl Marx