Poll Average Details- MO US President - D Primary - 2008-02-05 19:00:00

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 Hillary Clinton Barack Obama John Edwards Joe Biden Chris Dodd Dennis J. Kucinich Bill Richardson Mike Gravel Uncommitted Ralph Spelbring
Zogby International2/4X 1.00000   42.0000 - 0.8870 bias 45.0000 - 0.8870 bias                
Survey USA2/3X 0.98333   54.0000 - 0.5274 bias 43.0000 - 0.5274 bias                
American Research Group2/1X 0.95000   42.0000 - -0.0031 bias 44.0000 - -0.0031 bias                
Mason-Dixon2/1X 0.95000   47.0000 - 0.4277 bias 41.0000 - 0.4277 bias                
Rasmussen Reports1/31X 0.93333   47.0000 - 0.4180 bias 38.0000 - 0.4180 bias                
Research 20001/24X 0.81667   44.0000 - 1.1463 bias 31.0000 - 1.1463 bias 18.0000 - 1.1463 bias              
TOTAL 45.499658 40.061788 16.853700 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000