For Pew Research’s 10-year anniversary, here’s a list of 10 big research questions we’ve answered over the years that speak to broad ways that America and the world is changing.
With fully a quarter of the U.S. adult population now relying solely on cell phone service, pollsters and other survey researchers face a difficult decision as to whether to include cell phones in their samples. A joint study by the Pew Research Center for the People & the Press and the Pew Internet & American Life Project takes an up-to-date look at the potential biases in findings based on landline-only surveys.