A couple of things here:
1. I'm assuming that if you have a 5 yr. old daughter this must be a college-level course. Please correct me if I'm wrong. It seems to me that the question you are asking is far too basic for a college course. I should think you would want to know by age group, gender, level of education, etc. All of these factors are going to influence your results.
2. Alot of research is available about girls and the decline in scores on math and science once they reach middle school.
3. There is a new book out there by Danica McKellar (Winnie from "The Wonder Years", if you remember that show) titled "Math Doesn't Suck". I haven't read it, but plan to buy it for my 11 yo daughter for Christmas. It has great reviews online:
http://www.amazon.com/Math-Doesnt-S...6238058?ie=UTF8&s=books&qid=1194370288&sr=1-1
It sounds like this book might have alot of information you might be looking for.
Good luck and let us know how it turns out!