Methodological Research

We explored how Americans feel about the tenor of debate in the country in a recent major survey about U.S. political disource. Here's how we did it.

Polling in different parts of the world can be very challenging, because what works in one country may not work in a different country.

The Center conducts polls in many countries other than the U.S. – but the methodology behind our international surveys can vary.

Jeffrey S. Passel, senior demographer, on the research techniques used to derive the unauthorized immigrant population estimate in the U.S. and the challenges involved.

Photos that exclusively show men make up the majority of photos that show people; representational differences persist across topics

A key U.S. fertility rate has reached a record low for the fourth year in a row. But is it really a record low? The short answer: It’s complicated.

when designing an online survey questionnaire, there is more than one way to ask a respondent to select which options in a series applies to them.

With global survey research, it's important to understand what people are thinking about the subject we're studying. Focus groups help address this.

Nick Bertoni, manager of the American Trends Panel, explains how the panel works and what its recent expansion means for our future survey work.

Pew Research Center’s American Trends Panel (ATP) is now the Center’s principal source of data for U.S. public opinion research.