The study is likely specific to the country where it was conducted (I'm guessing the USA). I believe there are studies showing that while girls in the US are so

The study is likely specific to the country where it was conducted (I'm guessing the USA). I believe there are studies showing that while girls in the US are socialized to think of math and science as "masculine", which consequently affects their willingness to learn said subjects, things are much more equal in countries like Japan.