[scarmig]

Classwork isn't some static thing; historically, boys had higher GPAs than women, and I suspect you can find some subfields of study today where boys consistently outperform women as far GPA goes. The choice of what subject matter goes into the curriculum that a GPA represents and how's it's taught and evaluated is a political choice. You could very easily make GPA equitable by removing one class that girls over perform in and replacing it with a class that boys over perform in.

[lupire]

The truly awkward question is that GPA is important because colleges give grades too, but maybe the classwork grading and tests are bad and not conducive not education overall.

[scarmig]

I'd be interested in seeing if there's a gender effect on how predictive SAT scores are on college completion rate. A quick survey indicates that this isn't an area education researchers have thought is a good use of their time.