Our results show that women’s contributions tend to be accepted more often than men’s [when their gender is hidden]. However, when a woman’s gender is identifiable, they are rejected more often. Our results suggest that although women on GitHub may be more competent overall, bias against them exists nonetheless.
Out of 4,037,953 GitHub user profiles with email addresses, we were able to identify 1,426,121 (35.3%) of them as men or women through their public Google+ profiles.
Could be a confounding variable in that the type of people who reveal their gender publicly might differ from those who don’t in some way that is also related to their contribution quality
That might also be the case, but that then raises the question of the quality of PRs in order to judge the contribution quality of “anonymous” contributors.
