Inside Higher Ed has more on the Yale study:
Female scientists were as likely as male scientists to evaluate the students this way. For instance, the scientists were asked to rate the students' competence on a 5-point scale. Male faculty rated the male student 4.01 and the female student 3.33. Female scientists rated the male student 4.10 and the female student 3.32.Even I still catch myself thinking of a stereotypical doctor as a guy with a stethoscope, despite the fact that I've had female doctors for my entire adult life. It's harder to get rid of these biases than we think.