Are girls actually outperforming boys academically? It's repeated a few times, that girls attend college more often than boys, and achieve higher grades. But

Are girls actually outperforming boys academically? It's repeated a few times, that girls attend college more often than boys, and achieve higher grades. But college is a broad term; you can study electrical engineering or gender studies and get a master's degree either way, yet these are very different fields and require very different skills. Relatively more girls pick gender studies over electrical engineering. It's possible that boys outperform girls in every single field, but averaged over all fields, it appears the other way around (Simpson's Paradox). I wonder if there is any data that shows girls' superior performance broken down by field.