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Articles by Donald E. L. Johnson

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Which polls have been most accurate over last 10 years?

Of pollsters that have been active in Colorado this year, SurveyUSA, which polls for the DenverPost/ 9News survey, ranks the highest, third, of 261 polling companies, Dave Kopel reports over at Ciruli, which is known as the pollster for Colorado Democrats, ranks an impressive 4th in terms of accuracy. Another firm that works mostly for Democrats and left-wing blogs, Public Policy Polling, ranks 18th. Rasmussen Reports claims to be independent but is accused of favoring Republicans, ranks 20th. CNN/Opinion research is 39th, Magellan is 69th, Marist Institute is 24th and Fox/Opinion Dynamics is 141st. LINKS: Kopel: Which pollsters are most accurate? By David Kopel. Pollster Ratings v4.0: Methodology, by Nate Silver. Pollster Ratings, by Nate Silver.

Posted by Donald E. L. Johnson on 10/06/2010 at 09:24 AM


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