Pew Research CenterJune 16, 2017

Q&A: Pew Research Center’s president on key issues in U.S. polling

Read a Q&A with Michael Dimock, president of Pew Research Center, on recent developments in public opinion polling and what lies ahead.

MethodsMay 15, 2017

What Low Response Rates Mean for Telephone Surveys

Telephone polls still provide accurate data on a wide range of social, demographic and political variables, but some weaknesses persist.

MethodsMay 12, 2017

Video Explainer: Understanding random sampling for public opinion surveys

The first video in our “Methods 101” series is about random sampling, a concept that undergirds all probability-based survey research. Here’s how it works.

MethodsMay 4, 2017

Q&A: Political polls and the 2016 election

Courtney Kennedy of Pew Research Center, who chaired survey researchers organization AAPOR’s task force on political polling in the 2016 U.S. elections, discuss the group’s findings and recommendations.

MethodsMarch 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.

MethodsFebruary 16, 2017

A basic question when reading a poll: Does it include or exclude nonvoters?

Opinion polls in the U.S. can address the same topic yet reach very different results. There are several reasons this can happen, but we tackle one of the most basic: Did the poll include or exclude the 45% who didn’t vote in November?

MethodsNovember 15, 2016

Video: Why 2016 election polls missed their mark

The results of the 2016 presidential election came as a surprise to nearly everyone who had been following the national and state election polling

Fact TankNovember 9, 2016

Why 2016 election polls missed their mark

There is a great deal of speculation but no clear answers as to the cause of the disconnect, but there is one point of agreement: Across the board, polls underestimated Trump’s level of support.

Fact TankNovember 2, 2016

Just how does the general election exit poll work, anyway?

The firm that runs the presidential exit poll expects to interview about 100,000 voters across the country by the time the polls close on election night.

Fact TankOctober 17, 2016

Putting post-debate ‘flash polls’ into perspective

In the aftermath of presidential debates, there is intense interest in gauging “who won.” How can we know the answer to that question?