October 21, 2010
Political polls changing as cell phones proliferate and land lines disappear
Political polling in the U.S. is undergoing significant changes because of the growing popularity of cell phones and the diminishing number of Americans with traditional land lines, says Brian F. Schaffner, a political scientist at the University of Massachusetts Amherst. PhysOrg.com reports.
He says the shift to cell phones means that traditional public opinion polls based on calling large random samples of the population that have been familiar since the 1950s really donít exist anymore. "Polling is getting more difficult," Schaffner says. "No matter how you do it, you canít get a truly random sample."
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