Poll Average Details- SC Governor - 2010-11-02 18:00:00

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 Nikki Haley Nikki HaleyVincent A. Sheheen Others Morgan Bruce Reeves
Pulse Opinion Research10/21X 1.00000   49.0000 - 1.6194 bias 39.0000 - -0.2544 bias    
Rasmussen Reports10/19X 0.96667   47.0000 - 1.5977 bias 38.0000 - 0.4180 bias    
Insider Advantage10/19X 0.96667   50.9000 - 0.0480 bias 37.2000 - -0.0455 bias   3.0000 - 3.6879 bias
Crantford and Associates10/18X 0.95000   43.0000 - 0.5220 bias 41.0000 - 1.8276 bias    
Winthrop University10/10X 0.81667   46.0000 - 2.0110 bias 37.0000 - -1.8553 bias    
Hamilton Campaigns (D)10/4X 0.71667   49.0000 - -1.1628 bias 44.0000 - 2.0559 bias    
TOTAL 46.643978 38.878744 0.000000 -0.687900