About the SurveyFindings in this report are based on two main data sources:This report is based primarily on a Pew Research Center survey of the LGBT population conducted April 11-29, 2013, among a nationally representative sample of 1,197 self-identified lesbian, gay, bisexual and transgender adults 18 years of age or older. The sample comprised 398 gay men, 277 lesbians, 479 bisexuals and 43 transgender adults. The survey questionnaire was written by the Pew Research Center and administered by the GfK Group using KnowledgePanel, its nationally representative online research panel.The online survey mode was chosen for this study, in part, because considerable research on sensitive issues (such as drug use, sexual behavior and even attendance at religious services) indicates that the online mode of survey administration is likely to elicit more honest answers from respondents on a range of topics.The margin of sampling error for the full LGBT sample is plus or minus 4.1 percentage points at the 95% confidence level. For more details on the LGBT survey methodology, see Appendix 1.In most cases the comparisons made between LGBT adults and the general public are taken from other Pew Research Center surveys.
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