"Students Give Worse Reviews to Professors With Asian Names"

"Students also tended to flag the accents of professors with Asian-seeming names, sometimes making extreme comments such as “HE BARELY SPEAKS ENGLISH,” “don’t take him unless you know Chinese,” and “did not understand a single word he said all quarter.” Subtirelu noted that these complaints are probably exaggerations, as “it seems unlikely that [the student] attended a course over an entire term and never understood a single word the instructor produced," he wrote in the paper.

Even when students made attempts at complimenting their professors with Asian-sounding names, they showed an awareness of bias, the study found. Comments such as “her English is perfect,” appeared in evaluations of Asian professors but not American ones. “The fact that they are making these comments suggests that they anticipate that other people are reading the names and thinking, 'oh this person will be incomprehensible,'” Subtirelu said.

Instructors with American names were more likely to earn effusive praise from students. Students were more likely to say that an American professor was the “best math teacher I have ever [had]” and the word “best” appeared in fewer reviews of Asian professors."
http://www.bloomberg.com/news/articles/2015-03-02/students-give-worse-reviews-to-professors-with-asian-names