Numbers, Facts and Trends Shaping Your World
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By Courtney Kennedy, Kyley McGeeney and Scott Keeter Now that over 90% of U.S. adults have cellphones,[1. Stephen J. Blumberg and Julian V. Luke. Wireless substitution: Early Release of Estimates From the National Health Interview Survey, July–December 2015. National Center for Health Statistics. May 2016. Available from: http://www.cdc.gov/nchs/nhis.htm] survey researchers are considering whether it is necessary […]
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.
This report is based on results from two surveys – a national telephone survey of more than 35,000 adults that was the centerpiece of the Pew Research Center’s 2014 U.S. Religious Landscape Study, and a supplemental survey conducted at roughly the same time (summer 2014) among participants in Pew Research Center’s American Trends Panel (ATP). […]
Last updated June 2016 For newspapers, 2015 might as well have been a recession year. Weekday circulation fell 7% and Sunday circulation fell 4%, both showing their greatest declines since 2010. At the same time, advertising revenue experienced its greatest drop since 2009, falling nearly 8% from 2014 to 2015. Fully one-fourth of advertising revenue […]
To better understand the current landscape of commercially available online nonprobability samples, Pew Research Center conducted a study in which an identical questionnaire was administered to nine samples supplied by eight different vendors along with the Center’s probability-based online panel. A benchmarking analysis – in which a subset of each survey’s results was compared to […]
Online nonprobability surveys are fast, cheap, and increasingly popular. We compared nine samples and found that accuracy varied substantially.
