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.
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.
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.
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 […]
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.
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 […]
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 […]
Online nonprobability surveys are fast, cheap, and increasingly popular. We compared nine samples and found that accuracy varied substantially.
While the possibility of falsified data is an important consideration in survey research, a new tool to detect it fails to perform as advertised.
The claim by Kuriakose and Robbins (2015) that there is widespread falsification in international surveys is clearly concerning. However, an extensive investigation conducted by Pew Research Center finds the claim is not well supported.