report | Jun 11, 2015

How Census Race Categories Have Changed Over Time

The race, ethnicity and origin categories used in the U.S. decennial census have shifted over time often in a reflection of current politics, science and public attitudes. Our interactive tracks the category names from 1790 to 2010.

short reads | Jun 11, 2015

How Pew Research Center conducted its survey of multiracial Americans

We released our first report on American multiracial adults, a group that comprises an estimated 6.9% of the adult population, or nearly 17 million adults. The report looks at who they are demographically, their attitudes and experiences, and the spectrum of their racial identity.

report | Jun 10, 2015

Ukraine 2015: How We Approached Our Sample Design in Light of Insecurity in Eastern Ukraine

The uneasy ceasefire in eastern Ukraine, punctuated by almost daily fighting between separatists and government forces, posed a major challenge to the Pew Research Center as we set about conducting a new public opinion survey in that country this past spring. As always, our first priority was the safety of interviewers and respondents, who can both be at risk when it comes to face-to-face surveys in a conflict zone.

report | Apr 8, 2015

Building Pew Research Center’s American Trends Panel

In early 2014, Pew Research Center set out to build a probability-based panel – the American Trends Panel – to supplement our traditional method of data collection in the U.S. – the random digit dial (RDD) telephone survey. Here's how we built and managed the panel, and what we learned from it in 2014.

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Signature Reports

report | Nov 19, 2019

A Field Guide to Polling: Election 2020 Edition

While survey research in the United States is a year-round undertaking, the public’s focus on polling is never more intense than during the run-up to a presidential election.

report | Mar 31, 2017

Are Telephone Polls Understating Support for Trump?

An experiment comparing responses to 27 questions fielded on both a telephone and a web survey found no significant mode differences in overall opinion about Trump or many of his signature policy positions.