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Jan. 28, 2011

Cell Phones | Pew Research Center

http://www.people-press.org/methodology/sampling/cell-phones/

... dedicated a special issue to the topic of cell ... Requires More Than a Phone
Number July 9, 2009; ... Latest Findings on Cell Phones and Polling May 22 ...

Jan. 28, 2011

Cell Phone Surveys | Pew Research Center

http://www.people-press.org/methodology/collecting-survey-data/cell-phone-surveys/

... questions, especially those that cover more sensitive topics. ... More Than a Phone
Number July 9, 2009; ... Findings on Cell Phones and Polling May 22 ...