A growing share of polling is conducted with online opt-in, or nonprobability, samples. This trend has raised some concern within the industry because, while low participation rates pose a challenge for all surveys, the online opt-in variety face additional hurdles.
Pew Research Center hosted a survey methodology workshop on the opportunities and challenges of conducting public opinion research in sub-Saharan Africa to identify and discuss best practices and future directions for the field.
The U.S. has more foreign students enrolled in its colleges and universities than any other country in the world. Explore data about foreign students in the U.S. higher education system.
Establishing the interviewer’s perceived race or ethnicity is essential to understanding how it might affect the respondent’s answers to survey questions.
In a short video, Pew Research Center researchers explain how they produced the Center’s wide-ranging new survey of 1,001 American Muslims.
In this short video, Pew Research Center researchers explain how they overcame these obstacles to produce the Center’s wide-ranging new survey of 1,001 American Muslims.
People polled by telephone are slightly less likely than those interviewed online to say their personal finances are in “poor shape."
Read a Q&A with Maeve Duggan, Pew Research Center research associate, on our survey examining online harassment in the United States.
A new analysis sheds light on concerns raised among pollsters that the medium by which a survey question is asked – its mode – can affect responses.
Read a Q&A with Michael Dimock, president of Pew Research Center, on recent developments in public opinion polling and what lies ahead.
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About Pew Research Center Pew Research Center is a nonpartisan fact tank that informs the public about the issues, attitudes and trends shaping the world. It conducts public opinion polling, demographic research, media content analysis and other empirical social science research. Pew Research Center does not take policy positions. It is a subsidiary of The Pew Charitable Trusts.
