Research on gay and lesbian couples is highlighted with regard to household labor, conflict, satisfaction, perceived social support, stability, and the variables that predict relationship quality. Relative to partners from married heterosexual couples, partners from gay and lesbian couples tend to assign household labor more fairly, resolve conflict more constructively, experience similar levels of satisfaction, and perceive less support from family members but more support from friends. The limited data available indicate that gay and lesbian couples may be less stable than married heterosexual couples. The factors that predict relationship quality tend to be the same for gay, lesbian, and heterosexual married couples. Overall, research paints a positive picture of gay and lesbian couples and indicates that they tend to be more similar to than different from heterosexual couples. KEYWORDS-gay couples; lesbian couples; relationship quality; relationship stability In November 2004, Americans in 11 states voted on whether marriage should be legal for only heterosexual couples. The resounding message from the voters in each of these states was that marriage as a legal institution should, indeed, be reserved only for couples consisting of a man and a woman. One interpretation of voters' response to the gay-marriage issue is that most Americans regard gay and lesbian couples as being different from heterosexual couples. But what does research on gay and lesbian couples say on this matter? Does evidence support the view that gay and lesbian couples work in ways that are different from the way that heterosexual couples work? Before I examine aspects of these questions, I will address the question of the number of gay and lesbian couples in America.
HOW MANY AMERICAN GAY AND LESBIAN COUPLES ARE THERE?Because of the stigma associated with homosexuality, many gay and lesbian persons are reluctant to disclose their sexual orientation. Consequently, there are no definitive data on the number of gay and lesbian Americans. Perhaps the best available estimates were derived by Laumann, Gagnon, Michael, and Michaels (1994), who interviewed a national sample of 1,511 men and 1,921 women. Of this sample, 4.9% of the men and 4.1% of the women reported having engaged in sexual behavior with a person of their own sex since the age of 18, 6.2% of the men and 4.4% of the women reported having been attracted to a person of their own sex, and 2.8% of the men and 1.4% of the women identified themselves with a label denoting same-sex sexuality (e.g., homosexual). Given the difficulty in estimating the number of gay and lesbian Americans, it is not surprising that there are also no definitive data on the number of gay and lesbian American couples. However, changes in the way information about households is collected in the United States Census have allowed estimates of the number of households headed by a person with a same-sex partner to be obtained. Data from the Census of 2000 (Simons & O'Connell, 2003) indicate that of the 5.5 million co...