Poll Average Details- IL US Senate - 2010-11-02 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 Mark Kirk Mark KirkAlexander "Alexi" Giannoulias Alexander "Alexi" GiannouliasLeAlan M. Jones Mike Labno Lowell M. Seida Stan Jagla Susanne Atanus Robert L. Zadek Corey Dabney Willie "Will" Boyd, Jr. Shon-Tiyon "Santiago" Horton Avner Nagar Darren Raichart
Public Policy Polling10/31X 1.00000   46.0000 - 0.0973 bias 42.0000 - 0.9088 bias 3.0000 - 1.0282 bias 3.0000 - 1.0035 bias                  
YouGov10/30X 0.98333   45.8000 - 0.0717 bias 48.5000 - 1.3621 bias                      
Rasmussen Reports10/26X 0.91667   46.0000 - 1.6097 bias 42.0000 - 0.4145 bias 5.0000 - 1.6192 bias                    
Anzalone Liszt Research (D)10/24X 0.88333   36.0000 - -2.4595 bias 38.0000 - 3.5867 bias 7.0000 - 1.6847 bias 4.0000 - 2.5819 bias                  
Pulse Opinion Research10/23X 0.86667   43.0000 - 1.6182 bias 41.0000 - -0.2536 bias 7.0000 - 1.8736 bias                    
Market Shares Corp10/22X 0.85000   44.0000 - -0.3029 bias 41.0000 - -0.1166 bias 5.0000 - 2.0038 bias 4.0000 - 1.3747 bias                  
Mason-Dixon10/20X 0.81667   43.0000 - 0.8876 bias 41.0000 - 0.3444 bias                      
Southern Illinois University10/10X 0.65000   37.3000 - -1.5962 bias 36.8000 - 0.8155 bias 3.3000 - 0.4227 bias 1.8000 - 0.7199 bias                  
Suffolk University10/3X 0.53333   42.0000 - -2.5107 bias 41.0000 - 1.8265 bias 4.0000 - 0.5644 bias 3.0000 - 0.9650 bias                  
Opinion Research Corporation (CNN)9/28X 0.45000   42.0000 - 0.4310 bias 43.0000 - 0.8611 bias 8.0000 - 1.3465 bias                    
We Ask America9/13X 0.20000   38.6500 - 0.7827 bias 36.3200 - -0.1522 bias 4.1400 - 0.7078 bias 2.1100 - 1.2509 bias                  
TOTAL 42.791054 40.540568 3.801382 1.807258 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000