Despite increasing support for lesbian and gay individuals, the same degree of tolerance has not extended to bisexual individuals, and bisexual invisibility and biphobia are continuing problems that affect the mental health and well-being of bisexual people. There is evidence that attitudes toward bisexual people may vary by one's own sexual orientation or gender. In the present study, we examined differences in attitudes toward bisexual people by sexual orientation and gender. We also asked

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... exual participants to describe their experiences of being stigmatized. This study found significant effects for sexual orientation but not for gender; specifically, heterosexual participants reported significantly more biphobia and negative bisexual attitudes than gay, lesbian, or bisexual participants. Further, bisexual participants reported feeling most stigmatized by heterosexual individuals. The results of this study indicate that attitudes toward bisexuality differ by sexual orientation but not by gender. The authors suggest implications for the mental health and well-being of bisexual people as well as possible interventions.