Here’s a nice list of references documenting the finding that teaching evaluations reflect significant gender bias:

• Boring, A., Ottoboni, K., & Stark, P.B. (2016, January 7). Student evaluations of teaching (mostly) do not measure teaching effectiveness. ScienceOpen Research.
• Uttl, B., White, C.A., & Gonzalez, D.W. (2017, September). Meta-analysis of faculty’s teaching effectiveness: Student evaluation of teaching ratings and student learning are not related. Studies in Educational Evaluation, 54, 22-42.
• MacNell, L., Driscoll, A. & Hunt, A.N. (2015). What’s in a Name: Exposing Gender Bias in Student Ratings of Teaching. Innovative Higher Education, 40(4), 291–303. doi:10.1007/s10755-014-9313-4
• Student evaluations of teaching are not only unreliable, they are significantly biased against female instructors, Anne Boring, Kellie Ottoboni, and Philip B. Stark, LSE Impact Blog
• How Student Evaluations Are Skewed against Women and Minority Professors
• New study could be another nail in the coffin for the validity of student evaluations of teaching
• New analysis offers more evidence against student evaluations of teaching
• Study finds gender perception affects evaluations

At least one of the experimental designs that produced these findings was quite clever and compelling. It involved having a female and male professor each teach a course online and then reteach the same course as the other gender. In both cases when the students believed their professor was a woman she got worse reviews.

Source:

Thomas, P.L. (2017) “Men Of Academia Have An ‘Objectivity’ Problem.” The Huffington Post. http://www.huffingtonpost.com/entry/more-on-white-men-of-academia-student-and-self-evaluation_us_593a8204e4b0b65670e56963. [Accessed June 24, 2017 ].