Exclusion of cell-phone users in surveys studied

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. Tarnai Moore Schultz Titled “Characteristics of Cell Phone Only, Listed […]