<p>Texas137 wrote
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It would be interesting to see this extended down to pre-college. I believe the percentage of females decreases pretty steadily at every step starting from about age 11 and going all the way up. If that's the case, then the problem is not some glass ceiling effect that kicks in at the faculty level, nor is it adult concerns like family-responsibilities.
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<p>Or the problem could be the steady attrition which comes from both direct and subtle forms of discrimination and negative messages that girls and women get along the way. It's not a matter of a single, big barrier that needs to be overcome .. it is the net effect of all the barriers. </p>
<p>Just the idea that we have been discussing that math/science tenure tracks require that one devote one's whole being to working insane hours all through the normal child-bearing years is one aspect of the discrimination: make the road to "success" so difficult that it will discourage women who want families. The same thing was once true with law -- and is still the norm at many large firms -- but part of the process of opening up the profession to women was also the development of some alternative tracks, so that job-sharing, part-time work, and full time work with reasonable hours (like 40 hour work weeks and weekends off) became more common. I mean - a lot of the insane hours are spent doing fairly nonproductive work: attending meetings and conferences, for example. We now live in a world where a good deal of research, writing and communication can be done via telecommuting - there really is not a need for anyone doing work that is primarily intellectual to be physically present at an office or lab all the time. </p>
<p>But going back to the premise: if as a young woman grows up and considers career choices, she continually receives negative messages from the very people who ought to be mentors and role models... it is natural to start considering other options. The underlying message received becomes, "even if I complete all the educational requirements, I will constantly have to be proving my worth to these jerks, and I will probably encounter prejudice in hiring and promotions... do I really want to subject myself to this?" If a woman is stubborn enough, gets angry enough, and above all is extraordinarily committed to pursuing a career an an area in which she is passionately interested... she'll make it. </p>
<p>But in the meantime the women who aren't quite so sure are being undermined.... whereas for men, there is rather intense pressure driivng them toward careers in math and sciences. I mean, how many parents strongly encourage their sons to study science or engineering? How many daughters are receiving the same parental prodding? I mean -- shifting back to my own history as a lawyer: I became a lawyer because I wanted to, despite all sorts of discouraging messages about what a difficult path I would face; my ex-husband became a lawyer because his parents forced him to go to law school. </p>
<p>Now the barriers have come down in law and medicine, but they still exist in science. To propose an innate gender difference is not only one more example of continuing discrimination -- it is also really bad science. There ARE gender differences that have an impact on learning styles, but they don't affect overall abilities. That is, a "typical" girl might approach a problem in a different way than a "typical" boy -- but that doesn't mean that she can't solve the problem. In fact, the anecdote of the toddler and the truck illustrates this (though it is also bad science to use the anecdotal experience of baby to draw a conclusion about the aptitudes of a generation of adults) ... the baby girl played with the trucks in a different way than the baby boy, but the point is - she still was playing with the trucks. She knew that they were trucks - she just thought about them in a different way. </p>
<p>Mathematicians and scientists who think about old problems in new ways have a tendency to make great discoveries... so if anything, the difference in approach should be a reason to encourage them to enter these fields. Maybe they'll discover things their rigid-thinking male counterparts have missed.</p>