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

Doug Schwartz is affiliated with the American Association of Public Opinion Research (AAPOR). As the director of the Quinnipiac University Poll, which has been taking the pulse of the public on policy ...

In the current election cycle, many media reports about polls are not including information about the margin of error.

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Academic survey researchers tend to differ ...