Bisexual Attitudes Toward Same-Sex Marriage.

The Attitudes Toward Same-Sex Marriage Scale (ATSM) has been shown to be a reliable and valid measure when used with heterosexual participants (Pearl & Galupo, 2007). The present research sought to establish the psychometric properties of the ATSM with a sexual minority population, compare bisexual women and men's ATSM scores with those of lesbians and gay men, and to explore the relation between demographic and relationship factors with ATSM scores among bisexual participants. Two studies were conducted including a total of 237 sexual minority women and men. Results from Study 1 indicated that the ATSM is a valid and reliable measure for sexual minority participants, and that ATSM scores were simultaneously influenced by sex and sexual orientation. Bisexual women reported more positive attitudes than did bisexual men. However, there was no significant difference in ATSM scores between lesbians and gay men. Results from Study 2 indicated that for bisexual participants, ATSM scores were negatively correlated with religiosity and political conservatism. Additionally, ATSM scores were higher for both non-parents and individuals who were partnered or divorced (versus married). [ABSTRACT FROM AUTHOR]