Numbers, Facts and Trends Shaping Your World

Survey Methods

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Who Are You? The Art and Science of Measuring Identity

As a shop that studies human behavior through surveys and other social scientific techniques, we have a good line of sight into the contradictory nature of human preferences. Here’s a look at how we categorize our survey participants in ways that enhance our understanding of how people think and behave.

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How Public Polling Has Changed in the 21st Century

A new study found that 61% of national pollsters used different methods in 2022 than in 2016. And last year, 17% of pollsters used multiple methods to sample or interview people – up from 2% in 2016.

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Public Opinion Polling Basics

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.

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    (Photo illustration by enot-poloskun via GettyImages)

    How Does Pew Research Center Measure the Religious Composition of the U.S.? Answers to Frequently Asked Questions

    Question 1: Measuring religious identity How does Pew Research Center measure the religious identity of survey respondents and the religious composition of the U.S.? Answer: Generally, we rely on respondents’ self-identification.  A key question we ask in many surveys is: “What is your present religion, if any? Are you Protestant, Roman Catholic, Mormon, Orthodox such […]

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    Video: Can we still trust polls?

    Recent events – including the 2016 presidential election and Brexit – have rattled public confidence in polls. But this video explains why well-designed polls can still be trusted and remain an important way to measure public opinion.

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