Couper, Mick P., Garrett Gremel, William G. Axinn, Heidi Guyer, James Wagner, and Brady T. West. 2018. “New Options for National Population Surveys: The Implications of Internet and Smartphone Coverage.” Social Science Research 73:221-235. DOI.
Couper, Mick P., Garrett Gremel, William G. Axinn, Heidi Guyer, James Wagner, and Brady T. West. 2018. “New Options for National Population Surveys: The Implications of Internet and Smartphone Coverage.” Social Science Research 73:221-235. DOI.