January 18, 2010

TED'S LEGACY:

538 Model Posits Brown as 3:1 Favorite (Nate Silver, 1/18/10, FiveThirtyEight)

The FiveThirtyEight Senate Forecasting Model, which correctly predicted the outcome of all 35 Senate races in 2008, now regards Republican Scott Brown as a 74 percent favorite to win the Senate seat in Massachusetts on the basis of new polling from ARG, Research 2000 and InsiderAdvantage which show worsening numbers for Brown's opponent, Martha Coakley. [...]

Coakley's odds are substantially worse than they appeared to be 24 hours ago, when there were fewer credible polls to evaluate and there appeared to be some chance that her numbers were bottoming out and perhaps reversing. However, the ARG and Research 2000 polls both show clear and recent trends against her. Indeed the model, which was optimized for regular rather than special elections, may be too slow to incorporate new information and may understate the magnitude of the trend toward Brown.

Posted by Orrin Judd at January 18, 2010 7:18 PM
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