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 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 ...

Consider a population of 70 individuals, for which you wish to estimate the mean annual income, μ. Assume that you have decided to use the following estimation procedure to make your estimate: simple ...

Honorary Academic in Psychology, University of Auckland, Waipapa Taumata Rau Nicole Satherley works for iNZight Analytics which designs and undertakes research, but not market or polling research.