report | Nov 22, 2010

The Growing Gap between Landline and Dual Frame Election Polls

A new analysis of Pew Research Center pre-election surveys conducted this year finds that support for Republican candidates was significantly higher in samples based only on landlines than in dual frame samples that combined landline and cell phone interviews. The difference in the margin among likely voters this year is about twice as large as in 2008.

report | Oct 13, 2010

Cell Phones and Election Polls: An Update

Data from Pew Research Center polling this year suggest that the landline-only bias is as large, and potentially even larger, than it was in 2008.

report | Jun 23, 2010

Why won’t you pay me to answer your poll questions?

Senior research staff answer questions from readers relating to all the areas covered by our seven projects, ranging from polling techniques and findings, to media, technology, religious, demographic and global attitudes trends.

report | May 20, 2010

Assessing the Cell Phone Challenge

With fully a quarter of the U.S. adult population now relying solely on cell phone service, pollsters and other survey researchers face a difficult decision as to whether to include cell phones in their samples. A joint study by the Pew Research Center for the People & the Press and the Pew Internet & American Life Project takes an up-to-date look at the potential biases in findings based on landline-only surveys.

report | Apr 14, 2010

Is caller ID is increasing non-response rates in your surveys?

Senior research staff answer questions from readers relating to all the areas covered by our seven projects, ranging from polling techniques and findings, to media, technology, religious, demographic and global attitudes trends.

report | Mar 31, 2010

Can I volunteer to be picked for a survey?

Senior research staff answer questions from readers relating to all the areas covered by our seven projects, ranging from polling techniques and findings, to media, technology, religious, demographic and global attitudes trends.

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