gender science

The Brain Gender Gap by Anne Kreamer

I love quizzes of al most any sort. Where do I fall in the political spectrum? Do I like Venice or Florence better? Am I high maintenance (see Fountain of Youth Index). I found this test purporting to reveal the gender of my brain interesting. 

Turns out my brain is pretty evenly male/female. My husband's brain is slightly female, one of my daughter's is typically female and the other daughter is the most male in the family.

I'm not sure if this reveals a weakness in the quiz or in the underlying assumptions of hard-wired gender-ness. Or if it shows the folly of binary thinking.

What do you think?