The language I used was not clear.
most women are not interested in the field because most people aren't interested in the field.
I was speaking more towards the fact that less women go into STEM than basically any other major field.
Suggesting that it could be because of actual sex differences is ignorant and totally preposterous.
The hypotheses that a) the culture is male-dominated[1] and b)that the gap is due to that culture is well supported by sociological research.
[1]http://scholar.google.com/scholar_url?hl=en&q=http://onl...
I suspect that most women aren't interested in the field the same reason most men aren't. Despite how interesting it is to those of us -- women and men -- who have chosen the field, the fact is that most people just don't see (or share) the attraction, for reasons which have nothing to do with either their own sex or their perception of the culture of the field.
The minority of women interested in the field may be a smaller minority than the minority of men, and that may be because of either perception (accurate or not) of the welcomingness of the culture of the field by women (and, for that matter, men) or actual sex differences, or both, but that is a whole different set of things than the reason most women aren't interested in the field.