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By the end of our free, five-lesson course, you will know why we have polls, what the different kinds of polls are, how polling works and what you should look for in a poll.
NPORS is an annual survey of U.S. adults conducted by the Pew Research Center.
Looking at final estimates of the outcome of the 2020 U.S. presidential race, 93% of national polls overstated the Democratic candidate’s support among voters, while nearly as many (88%) did so in 2016.
Given the errors in 2016 and 2020 election polling, how much should we trust polls that attempt to measure opinions on issues?
The real environment in which polls are conducted bears little resemblance to the idealized settings presented in textbooks.
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Our series of brief explainer videos breaks down key topics in research methodology for non-expert audiences.
A behind-the-scenes blog about research methods at Pew Research Center.
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