Appendix D: About the Surveys

The analysis in this report is based on telephone interviews conducted February 18-22, March 25-29 and May 12-18, 2015 among a combined national sample of 5,006 adults, ages 18 or older, living in all 50 U.S. states and the District of Columbia (1,751 respondents were interviewed on a landline telephone, and 3,255 were interviewed on […]