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Polling expert: PPP’s polling practices are in line with the industry norm
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News
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| Contributor | Karma Policeman |
| Last Edited | Karma Policeman Sep 13, 2013 06:47am |
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| Category | Commentary |
| Author | Twitchy staff |
| News Date | Friday, September 13, 2013 12:00:00 PM UTC0:0 |
| Description | It certainly has been an educational week for those of us interesting in polling.
First came the illuminating disclosure that liberal polling company Public Policy Polling sometimes does not release the results of polls with unexpected results.
Then came this interesting article by TNR’s Nate Cohn, showing that PPP’s polling methodology includes a variety of questionable practices such as “random deletion” of respondents.
Then came Nate Silver’s statement that he will continue relying on PPP data even though he thinks PPP’s polls are crap.
Drew Linzer, a Ph.D. political scientist who knows his stuff, likened random deletion to “intuitive ‘shrinkage’ weighting.” |
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