Methodological Research

Polls can't predict the future. But they are the best tool to reveal the public’s priorities and values, and why people vote the way they do.

Debates over who is Hispanic have fueled conversations about identity among Americans who trace their heritage to Latin America or Spain.

Here are some key facts for Hispanic Heritage Month about the United States' Latino population by age, geography and origin groups.

Our analysis of verified voters examines what 2016 voters and nonvoters did in the 2018 midterm elections and offers a detailed portrait of the demographic composition and vote choices of the 2018 electorate.

If a battleground state poll does not adjust for having too many college graduates, it is at risk of overstating support for a Democratic presidential candidate. The Current Population Survey provides high-quality data that can mitigate overrepresentation of college graduates.

The real environment in which polls are conducted bears little resemblance to the idealized settings presented in textbooks.

Those who have not responded to the census so far are likely to be from groups the census previously has struggled to count accurately.

The U.S. Hispanic population reached a record 60.6 million in 2019, up 930,000 over the previous year and up from 50.7 million in 2010.

The rise of internet polling makes it more feasible to publish estimates for Asian Americans. But these estimates offer a limited view.

Associate Director for International Research Methods Patrick Moynihan explored the impacts of the coronavirus pandemic on survey research globally as part of an online conference hosted by the Centre for Social Research and Methods at Australian National University.