Three-hundred eight students from the Introductory Psychology participant pool at Ball State University took part in a preliminary investigation of heterosexuals' attitudes toward bisexuality. The study found that heterosexual men and women expressed more positive responses toward heterosexuals than toward lesbian, gay male, and bisexual individuals, but did not distinguish between homosexual and bisexual persons. Sex differences were found for acceptance of lesbians, gay men, and bisexual men and women but not for affective responses to these individuals. More specifically, male and female participants' affective responses to homosexual and bisexual target individuals were similar; however, on questions pertaining to acceptance, female participants rated all persons similarly whereas male participants rated heterosexual men more favorably than homosexual or bisexual men. It was also found that beliefs about bisexuality as a real orientation or as homosexual denial were in fact related to participants' responses to the bisexual target individual, whereas beliefs that bisexuality is a transitional or transitory orientation were not. / Department of Psychological Science