Pew Research Center survey reports, demographic studies and data-driven analysis
Commercial Voter Files and the Study of U.S. Politics
A new analysis demystifies voter files, the widely-used and comprehensive digital databases used to better understand the U.S. electorate.
For Weighting Online Opt-In Samples, What Matters Most?
A growing share of polling is conducted with online opt-in, or nonprobability, samples. This trend has raised some concern within the industry because, while low participation rates pose a challenge for all surveys, the online opt-in variety face additional hurdles.
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.
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.
Cellphone Activity Flags
As telephone interviewing costs continue to rise and cellphones represent an increasing share of survey samples, survey researchers are exploring approaches to make these designs more cost-effective.
Text Message Notification for Web Surveys
By Kyley McGeeney and H. Yanna Yan Text messaging has grown in popularity in recent years, leading survey researchers to explore ways texts might be used as tools in the public opinion research process. In the U.S., at least, researchers must obtain consent from respondents before they are permitted to send an automated text. This […]
Flashpoints in Polling
Many people wonder: Can polls be trusted? The following essay contains a big-picture review of the state of polling, organized around a number of key areas.
The Twilight of Landline Interviewing
By Courtney Kennedy, Kyley McGeeney and Scott Keeter Now that over 90% of U.S. adults have cellphones,1 survey researchers are considering whether it is necessary to continue dialing landline numbers in random-digit-dial (RDD) telephone polls. A new Pew Research Center study finds that, for polls already conducting a substantial share of interviews with cellphones, the answer […]
Moving Without Changing Your Cellphone Number: A Predicament for Pollsters
By Meredith Dost and Kyley McGeeney Each year about 36 million Americans move residences, according to the Census Bureau. And they quite often take their cellphone numbers with them. Others have not moved but bought their cellphone in a different state. The net result, according to new Pew Research Center estimates, is that 10% of […]
Evaluating Online Nonprobability Surveys
Online nonprobability surveys are fast, cheap, and increasingly popular. We compared nine samples and found that accuracy varied substantially.