New Study on Gender Gap in Math - it doesn't exist

The new study from University of Wisconsin looks at international data and claims,

"In summary, we conclude that gender equity and other sociocultural factors, not national income, school type, or religion per se, are the primary determinants of mathematics performance at all levels for both boys and girls. Our findings are consistent with the gender stratified hypothesis, but not with the greater male variability, gap due to inequity, single-gender classroom, or Muslim culture hypotheses."

It is important to look at their breakdown of data, it is extensive. It does discuss the status of gender gap within the United States and links it to the lacks of overall gender equality.

Now, if someone would do this type of study with international reading scores.