Maybe this is why the science industry is so male-dominated: Turns out science professors think more highly of male students. A team led by Corinne A. Moss-Racusin asked 127 professors of biology, chemistry, and physics at major research universities to rate the competency, hireability, and their own willingness to mentor of a grad school applicant on a scale of 1 to 7. Every professor got the same application except for one small difference: sometimes the aspiring scientist was named "John" and sometimes "Jennifer."
Faculty—both men and women—rated the male student higher for everything. The chart above shows the average rating given to "John" or "Jennifer," whom the professors believed to be a real student who would read their evaluations. But the data in the paper, published by the Proceedings of the National Academy of Sciences, shows that female faculty actually rated "John" higher than their male colleagues, while they also gave lower ratings to "Jennifer." The biggest gap, both overall and depending on the gender of the rater, was in the hireability. "John" got hireability ratings of 3.74 and 3.92 from the male and female faculty. For "Jennifer," it was 2.96 and 2.84.