Results for the survey are based on telephone interviews conducted under the direction of Gallup and Langer Research Associates. The results are based on national samples, unless otherwise noted. More ...

As polling takes center stage again this election year, understanding its strengths and weaknesses is critical. At Pew Research Center, we’ve looked hard at the advantages and limitations of our ...

This report documents the rich set of extant findings about the causes, consequences, and remedies for the general decline in survey response throughout the developed world. This decline represents a ...