when designing an online survey questionnaire, there is more than one way to ask a respondent to select which options in a series applies to them.
Nick Bertoni, manager of the American Trends Panel, explains how the panel works and what its recent expansion means for our future survey work.
Pew Research Center’s American Trends Panel (ATP) is now the Center’s principal source of data for U.S. public opinion research.
What does the migration to online polling mean for the country's trove of public opinion data gathered over the past four decades?
Pew Research Center conducts surveys over the phone and, increasingly, online. But these two formats don’t always produce identical results.
A new telephone survey experiment finds that an opinion poll drawn from a commercial voter file produces results similar to those from a sample based on random-digit dialing.
Many online surveys are conducted using “nonprobability” or “opt-in” samples, which are generally easier and cheaper to conduct. In our latest Methods 101 video, we explore some of the features of nonprobability surveys and how they differ from traditional probability-based polls.
Our latest Methods 101 video explores some of the ways these surveys differ from traditional probability-based polls.
At Pew Research Center, we frequently receive questions about how we measure religion. Here are answers to some of the questions we get most frequently.
