Pew Research Center is a nonpartisan, nonprofit fact tank that informs the public about the issues, attitudes and trends shaping the world. We conduct public opinion polling, demographic research, content analysis and other data-driven social science research. We do not take policy positions.

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If you recently received a letter or postcard that invited you to participate in one of our national studies, we would like to thank you for participating in this important work. To complete the survey, please go to and enter the password provided in your letter or postcard.

The survey aims to measure people’s opinions on a variety of issues, attitudes and trends shaping America. It is being conducted online with partners at Westat, one of the nation’s largest and most trusted survey interviewing organizations.

For more information about Pew Research Center’s mission and work, read our full “About” page.

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