RCS: Why You’re Biased About Being Biased

I like this one...

and the “Dunning-Kruger effect,” which makes experts underestimate their abilities and laypeople overestimate theirs.

One example of biased bias: Study finds gender bias in open-source programming: GitHub is an online programming community that fosters collaboration on open-source software projects. When people identify ways to improve code on a given project, they submit a "pull request." Those pull requests are then approved or denied by "insiders," the programmers who are responsible for overseeing the project. For this study, researchers looked at more than 3 million pull requests from approximately 330,000 GitHub users, of whom about 21,000 were women. The researchers found that 78.7 percent of women's pull requests were accepted, compared to 74.6 percent for men. However, when looking at pull requests by people who were not insiders on the relevant project, the results got more complicated. Programmers who could easily be identified as women based on their names or profile pictures had lower pull request acceptance rates (58 percent) than users who could be identified as men (61 percent). But woman programmers who had gender neutral profiles had higher acceptance rates (70 percent) than any other group, including men with gender neutral profiles (65 percent).

IMO the results correspond exact the real situation: once you know, that some group avoids some activity, you'll automatically consider, that average member of this group isn't good in it. Whereas in reality the active members must exert increased effort for to overcome this social status and they will become better in it than average. Apparently this attitude has nothing to do with sexism, but with social recognition. Similarly the proponents of alternative science are often considered incompetent crackpots, despite they're often better in critical thinking and literacy than the average rest, who just accepts mainstream science blindly. IMO this attitude of mainstream toward outsiders is analogous to dark matter behavior which massive bodies also expel into outside of their center.