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Exclusion of cell-phone users in surveys studied
December 30, 2009

PULLMAN – It is estimated that U.S. cell-phone-only households have increased from about 4 percent in 2004 to more than 14 percent in 2007, with 33 percent of cell-phone respondents having no landline telephone, according to research featured in the spring 2009 WSU Academic Showcase.




Titled “Characteristics of Cell Phone Only, Listed and Unlisted Telephone Households,” the project was conducted by John Tarnai, director of the Social and Economic Research Sciences Center at WSU, Danna Moore, associate director, … » More …