Poll Average Details- OR US President - 2008-11-04 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 Barack Obama Barack ObamaJohn McCain Ron PaulRalph Nader Bob Barr Cynthia McKinney Write-In Chuck Baldwin
YouGov11/1X 1.00000   54.0000 - 1.4134 bias 43.0000 - 0.0288 bias          
Public Policy Polling10/30X 0.96667   57.0000 - 1.1680 bias 42.0000 - -0.1800 bias          
Rasmussen Reports10/30X 0.96667   54.0000 - 0.4180 bias 42.0000 - 1.5977 bias          
Survey USA10/26X 0.90000   57.0000 - 0.5274 bias 38.0000 - 0.3265 bias          
Riley Research Associates (R)10/20X 0.80000   48.0000 - 0.6395 bias 34.0000 - 1.1891 bias          
Grove Insight (D)10/9X 0.61667   52.0000 - 2.8547 bias 39.0000 - -1.0926 bias 1.0000 - 0.0569 bias 1.0000 - 0.6576 bias      
Research 20009/24X 0.36667   53.0000 - 1.1463 bias 39.0000 - 0.1379 bias          
American Research Group9/22X 0.33333   52.0000 - -0.0031 bias 41.0000 - 0.7892 bias          
DHM Research9/14X 0.20000   50.0000 - -2.0926 bias 40.0000 - 1.4489 bias 2.0000 - 1.1556 bias        
Moore Information (R)9/11X 0.15000   43.0000 - -0.6331 bias 37.0000 - 1.6091 bias          
Hoffman Research (R)9/9X 0.11667   46.0000 - -1.6204 bias 39.0000 - 2.2404 bias 1.0000 - 0.1311 bias 1.0000 - 1.5127 bias      
TOTAL 52.401049 39.372453 0.912675 0.206361 0.000000 0.000000 0.000000