Polling Errors

ES&S DS200 Ballot Scanner - Scanning InstructionsAn opinion poll, sometimes simply referred to as a poll, is a survey of public opinion from a particular sample. Opinion polls are usually designed to represent the ……

The margin of error is a statistic expressing the amount of random sampling error in a survey’s results. The larger the margin of error, the less confidence one ……

Who did the poll? Who paid for the poll and why was it done? How many people were interviewed for the survey? How were those people chosen? What area (nation, state ……

Definitions, examples, and explanations of a variety of survey errors including measurement error, margin of error, coverage error, non-response error and weighting….

Tweet Yesterday, Nate Silver and I both examined Senate polling errors. He noticed no overall bias averaged across all elections; I pointed out that recent bias has ……

We started with the names of the 68 pollsters with the most election polls in our database. Then we reached out to the 60 who remain active and reachable….

The organization asked respondents about the wrong candidates for state treasurer in a poll that showed Mary Burke up by five points….

It appears that you are not logged into to take a survey. You must be logged in to participate. If you need assistance, please visit the E-Poll Help Center for ……

United Technologies/National Journal Congressional Connection Poll conducted by Princeton Survey Research Associates International. Feb. 23-26, 2012….

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