Read a Q&A with Michael Dimock, president of Pew Research Center, on recent developments in public opinion polling and what lies ahead.
Telephone polls still provide accurate data on a wide range of social, demographic and political variables, but some weaknesses persist.
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.
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.
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.
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?
The results of the 2016 presidential election came as a surprise to nearly everyone who had been following the national and state election polling
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.
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.
In the aftermath of presidential debates, there is intense interest in gauging "who won." How can we know the answer to that question?