males / females have equal math skills

on science daily:

'one portion of the new study looked systematically at 242 articles that assessed the math skills of 1,286,350 people, says chief author janet hyde, a professor of psychology and women's studies at the university of wisconsin-madison.

these studies, all published in english between 1990 and 2007, looked at people from grade school to college and beyond. a second portion of the new study examined the results of several large, long-term scientific studies, including the national assessment of educational progress.

in both cases, hyde says, the difference between the two sexes was so close as to be meaningless.'

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