**Principal investigators:** **Brian J. McCabe** Georgetown University Email: mccabeb@georgetown.edu Homepage: http://brianjamesmccabe.com/ **Jennifer A. Heerwig** Stony Brook University Email: jenheerwig@gmail.com Homepage: http://www.jenheerwig.com/ **Sample size:** 3338 **Field period:** 5/20/2009-7/29/2009 **Abstract** The extension of marriage or civil unions to gay and lesbian couples has emerged as one of the most oft-debated policy issues in recent years. In response to the broadened public debate, research and polling organizations have sought to measure public attitudes on the topic. These polls vary widely in both the frames and context. Some polls frame the issue as one of gay and lesbian marriage, while others ask about same-sex marriage or homosexual marriage; likewise, many of the polls ask about marriage and civil unions concurrently, while others inquire about one without reference to the other. In this paper, we report the results of an Internet experiment on a nationally representative sample of American adults testing for framing and context effects in public attitudes towards the legal recognition of gay and lesbian relationships. We report no difference in mean support when respondents are asked about gay and lesbian, same-sex or homosexual marriage and civil unions, but observe substantial variation in the strength of opposition or support based on these frames. We also report an increase in support for civil unions when asked after the question about marriage, but do not find statistically significant context effects for marriage. **Hypotheses** We hypothesize that question wording (e.g., gay vs. same sex vs. homosexual) and context (the order of the questions on marriage & civil unions) affect levels of support and/or intensity of support. **Experimental Manipulations** We manipulate wording and context in the research questions. **Outcomes** - Support for marriage (Strongly support, Support, Oppose, Strongly oppose) - Support for civil unions (Strongly support, Support, Oppose, Strongly oppose) **Summary of Results** We report no difference in mean support when respondents are asked about gay and lesbian, same-sex or homosexual marriage and civil unions, but observe substantial variation in the strength of opposition or support based on these frames. We also report an increase in support for civil unions when asked after the question about marriage, but do not find statistically significant context effects for marriage. **References** McCabe, Brian J. and Jennifer A. Heerwig. 2011. Reframing the Marriage Debate: Wording, Context, and Intensity of Support for Marriage and Civil Unions. *International Journal of Public Opinion Research*.