The margin of error allows you to use smaller sample sizes when conducting customer surveys. The measurement directly relates ...

As Americans await the presidential election results, many are looking to the polls for clues. A poll’s margin of error describes how close a survey result can ...

Ofer Harel receives funding from The National Science Foundation, US Food and Drug Administration and The National Institute of Health. He is also sits on the Bureau of Labor Statistics Technical ...

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Every survey finding published by Pew Research ...

As Americans await election results, many are looking to the polls for answers. Dr. Andy Smith from the University of New Hampshire Survey Center joined LiveNOW from FOX on Election Day with tips for ...