Poll Average Details- MA 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 Deval L. Patrick Christopher F. GabrieliKerry Murphy Healey OthersChristy P. Mihos Grace Ross Others
Survey USA11/1X 1.00000   55.0000 - 0.4044 bias 34.0000 - 0.3780 bias 6.0000 - 1.8620 bias 3.0000 - 1.1154 bias  
Zogby Interactive10/27X 0.91667   58.1000 - 0.0638 bias 32.7000 - 0.8373 bias 4.0000 - -0.0999 bias    
University of New Hampshire10/25X 0.88333   54.0000 - 3.2219 bias 29.0000 - -2.4512 bias 8.0000 - 3.9743 bias 2.0000 - 0.4733 bias  
Suffolk University10/23X 0.85000   53.0000 - 1.8265 bias 26.0000 - -2.5107 bias 9.0000 - 1.7750 bias 2.0000 - 1.6218 bias  
Rasmussen Reports10/20X 0.80000   53.0000 - 0.4145 bias 29.0000 - 1.6097 bias 9.0000 - 1.2092 bias    
Bay State Poll - Merrimack College9/24X 0.36667   54.0000 - 2.9570 bias 21.0000 - -2.6384 bias 5.0000 - 0.6573 bias 1.0000 - -0.7113 bias  
TOTAL 53.342093 30.192066 5.277195 1.349075 0.000000