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WI_DEM

(33,497 posts)
Wed May 30, 2012, 04:48 PM May 2012

Once Again Marquette Poll's (WI) Sample Grossly Oversamples Conservatives, Undersamples Moderates [View all]

Polls are only relevent if their sample is reflective of the electorate. As the graph below demonstrates, compared to exit poll data (averaged from 2010, 2008 and 2010) the recently released Marquette poll grossly oversamples conservatives and undersamples moderates.

This is, of course, quite significant considering that that same poll shows Barrett beating Walker 50 to 42% among moderates.

Click on link to see graph showing over and under sampling:

http://www.uppitywis.org/blogarticle/once-again-marquette-polls-sample-grossly-oversamples-conservati

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