Pew Research CenterMay 15, 2012

Section 1: Survey Comparisons and Benchmarks

For the past few decades, telephone survey researchers have faced increasing difficulty contacting Americans and getting reluctant people to cooperate. Surveyors also face the challenge of adequately covering the U.S. population at a time of growing cell phone use. More than a third of households can be reached only on a cell phone, thus making […]

Pew Research CenterJuly 9, 2009

Accurately Locating Where Wireless Respondents Live Requires More Than A Phone Number