report | Sep 23, 2008

Cell Phones and the 2008 Vote: An Update

As in two preceding tests, a new survey shows that including cell phone interviews results in slightly more support for Obama and slightly less for McCain.

report | Jul 17, 2008

Cell Phones and the 2008 Vote: An Update

The latest Pew Research Center national survey, including a sample of 503 adults on a cell phone, finds that the overall estimate of voter presidential preference is modestly affected by whether or not the cell phone respondents are included.

report | Jan 31, 2008

The Impact Of “Cell-Onlys” On Public Opinion Polling

Summary of Findings The proportion of Americans who rely solely on a cell phone for their telephone service continues to grow, as does the share who still have a landline phone but do most of their calling on their cell phone. With these changes, there is an increased concern that polls conducted only on landline […]

report | Jan 10, 2008

Getting It Wrong

Several factors deserve exploration, but one should not ignore the possibility of the longstanding pattern of pre-election polls overstating support for black candidates among white voters, particularly white voters who are poor.

report | Jun 19, 2007

How Serious Is Polling’s Cell-Only Problem?

The landline-less are different from regular telephone users in many of their opinions and their numbers are growing fast. Can survey researchers meet this challenge?

report | Jun 19, 2007

What’s Missing from National RDD Surveys? The Impact of the Growing Cell-Only Population

The number of cell-phone-only households has continued to grow -- 12.8% of all households by the end of 2006, according to the National Health Interview Survey. While the noncoverage problem is currently not damaging estimates for the entire population, a study finds evidence that it does create biased estimates on certain variables for young adults, 25% of whom are cell-only.

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report | Nov 19, 2019

A Field Guide to Polling: Election 2020 Edition

While survey research in the United States is a year-round undertaking, the public’s focus on polling is never more intense than during the run-up to a presidential election.

report | Mar 31, 2017

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.