This survey is based on telephone interviews with a nationally representative sample of 1,006 adults living in the continental United States. Telephone interviews were conducted by landline (502) and cell phone (504, including 288 without a landline phone). The survey was conducted by Princeton Survey Research Associates International (PSRAI). Interviews were done in English and Spanish by Princeton Data Source from January 9 to 12, 2014. Statistical results are weighted to correct known demographic discrepancies. The margin of sampling error for the complete set of weighted data is ± 3.5 percentage points.
