Growing and Improving Pew Research Center’s American Trends Panel
Pew Research Center’s American Trends Panel (ATP) is now the Center’s principal source of data for U.S. public opinion research.
Online Surveys
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Online Surveys
Publications
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Response rates in telephone surveys have resumed their decline
Response rates to telephone public opinion polls conducted by Pew Research Center have resumed their decline, to 7% in 2017 and 6% in 2018.
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What our transition to online polling means for decades of phone survey trends
What does the migration to online polling mean for the country’s trove of public opinion data gathered over the past four decades?
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Phone vs. online surveys: Why do respondents’ answers sometimes differ by mode?
Pew Research Center conducts surveys over the phone and, increasingly, online. But these two formats don’t always produce identical results.
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Comparing MRP to raking for online opt-in polls
In a recent study about online opt-in polling, Pew Research Center compared a variety of weighting approaches and found that complex…
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Comparing Survey Sampling Strategies: Random-Digit Dial vs. Voter Files
A new telephone survey experiment finds that an opinion poll drawn from a commercial voter file produces results similar to those from a sample based on random-digit dialing.
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What are nonprobability surveys?
Many online surveys are conducted using “nonprobability” or “opt-in” samples, which are generally easier and cheaper to conduct. In our latest Methods 101 video, we explore some of the features of nonprobability surveys and how they differ from traditional probability-based polls.
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Methods 101: What are nonprobability surveys?
Our latest Methods 101 video explores some of the ways these surveys differ from traditional probability-based polls.
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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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Welcome to Decoded!
An introduction to the methodological musings, puzzles and tangles that you would see if you could flip those picture-perfect research products over.
