Are perceived professional qualities affected by knowledge of a counselor's sexual orientation?
The experimentally manipulated sexual orientation of a female counselor was not related to the perceptions of her Expertness, Attractiveness, or Trustworthiness rated by 8 male and 22 female, heterosexual college students.
Kurdelak, Linda M., Jeremy M. Linton, and Timothy K. Daugherty. "Are perceived professional qualities affected by knowledge of a counselor's sexual orientation?." Psychological reports 83, no. 3_suppl (1998): 1145-1146.