Poll Average Details- MN US President - 2008-11-04 20:00:00

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 Hillary ClintonJohn McCain John McCainCynthia McKinney UndecidedBrian P. Moore Alan L. Keyes Joe C. "Average Joe" Schriner Write-In Chuck Baldwin OthersRóger Calero Jonathan E. Allen Curtis Montgomery Bob Barr Ralph Nader
YouGov11/1X 1.00000   51.0000 - 1.4134 bias 45.0000 - 0.0288 bias                      
Survey USA11/1X 1.00000   49.0000 - 0.5274 bias 46.0000 - 0.3265 bias                      
Princeton Survey Research Associates10/31X 0.98333   53.0000 - 1.8159 bias 42.0000 - -1.1956 bias                      
Public Policy Polling10/30X 0.96667   57.0000 - 1.1680 bias 41.0000 - -0.1800 bias                      
Humphrey Institute/University of Minnesota10/28X 0.93333   56.0000 - 1.3451 bias 37.0000 - -1.4775 bias                      
Mason-Dixon10/28X 0.93333   48.0000 - 0.4277 bias 40.0000 - 0.8543 bias                      
Rasmussen Reports10/28X 0.93333   55.0000 - 0.4180 bias 43.0000 - 1.5977 bias                      
Big Ten10/22X 0.83333   57.0000 - 3.5079 bias 38.0000 - -1.9740 bias                      
Financial Dynamics10/20X 0.80000   50.0000 - -0.0513 bias 40.0000 - 1.0303 bias                      
Research 200010/16X 0.73333   52.0000 - 1.1463 bias 39.0000 - 0.1379 bias                      
Quinnipiac University10/12X 0.66667   51.0000 - 1.0754 bias 40.0000 - -0.2682 bias                      
American Research Group10/7X 0.58333   47.0000 - -0.0031 bias 46.0000 - 0.7892 bias                      
Opinion Research Corporation (CNN)9/30X 0.46667   53.0000 - 0.8608 bias 41.0000 - 0.4312 bias                   1.0000 - 2.2808 bias 2.0000 - 4.8590 bias
TOTAL 51.291701 41.460463 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 -1.280800 -2.859000