Wondering how many people in the United States have a smartphone? If you poll 20 people on the street, your survey won’t be representative of the entire American population. But if you just want to ...

Survey questions raising concerns in middle schools: *The last time you engaged in sexual activity, did you use one of the following to protect yourself from sexually transmitted diseases (STDs)?

Throughout 2020, marketers and event planners raced to transform their in-person events to a digital format as a result of the pandemic. The adjustment was, understandably, difficult. But virtual ...

School leaders often face a particularly vexing question when using surveys: How do I know if the feedback accurately represents the opinion of my teachers, parents, students and other stakeholders?

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Survey researchers often try to determine how respondents might react to ...