Poll Average Details- MI Governor - 2006-11-07 23:00:00

The Poll Average is a weighted and adjusted number.
[Mid Date Column] All times are calculated by the middle date of the poll if it spans multiple days.
A time window of 2 months prior to the most recent poll is used.
[Time Weight Column] Polls are weighted in the amount they contribute to the final results in a linear fashion in this time window - the newest poll has a weight of 1, a poll 30 days prior will have a weight of 0.5 and a poll 60 days out will have a weight of 0. If the same pollster has more than one poll in this time period, only the newest will be used.
[Internal Column] If a poll is marked as being an internal poll for one of the candidates, it's weight will be halved.
[Candidate Columns, Bias] OurCampaigns has calculated partisan bias figures for all Polling Firms based on data from final vote totals in races they have polled. These amounts are subtracted from the poll result - in the case the bias figure is negative it will effectively be added to the poll result and appear as two dashes (minus a negative = plus). [TOTAL Row] The adjusted weights are summed for each poll result and the adjusted poll results for each candidate are multiplied by the poll weight and then summed. Each candidate's poll sum is divided by their weight sum to give the total.

PollMid DateTime WeightInternal Jennifer Granholm Jennifer GranholmDick DeVos Louis BovenGreg Creswell Doug Campbell Angelo Scott Brown Timothy Wellsted Robert C. "Bob" Jones Bhagwan "Bob" Dashairya
Polimetrix11/5X 1.00000   55.0000 - 1.9452 bias 43.0000 - 1.6909 bias            
Strategic Vision (R)11/4X 0.98333   52.0000 - -0.4798 bias 42.0000 - 1.1151 bias            
Survey USA11/4X 0.98333   51.0000 - 0.6566 bias 45.0000 - 0.3289 bias 2.0000 - 1.2900 bias 1.0000 - 0.9105 bias       1.0000 - 1.1366 bias
Selzer & Co.11/2X 0.95000   54.0000 - 1.0019 bias 41.0000 - -0.2736 bias            
Mason-Dixon11/2X 0.95000   52.0000 - 0.4817 bias 38.0000 - 0.8083 bias            
EPIC/MRA11/1X 0.93333   52.0000 - 1.0894 bias 43.0000 - 0.3787 bias            
Zogby Interactive10/27X 0.85000   51.6000 - 0.0637 bias 42.7000 - 0.8374 bias            
Research 200010/24X 0.80000   50.0000 - 1.1463 bias 40.0000 - 0.1379 bias            
Rasmussen Reports10/22X 0.76667   54.0000 - 0.4379 bias 43.0000 - 1.5515 bias            
TOTAL 51.714951 41.258964 0.710000 0.089500 0.000000 0.000000 0.000000 -0.136600