Poll Average Details- IL US Senate - 2014-11-04 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.

Poll	Mid Date	Time Weight	Internal	Dick Durbin Dick Durbin	Jim Oberweis Sherry Procarione	Sharon Hansen	Roger K. Davis	Hilaire Fuji Shioura	Sherry Procarione
Public Policy Polling	11/2	X 1.00000		51.0000 - 1.1680 bias	41.0000 - -0.1800 bias	4.0000 - 1.4191 bias
McKeon & Associates	10/29	X 0.93333		49.0000 - -0.6644 bias	39.0000 - -1.6375 bias	4.0000 - 2.3133 bias
YouGov	10/23	X 0.83333		52.0000 - 1.4134 bias	39.0000 - 0.0288 bias
Southern Illinois University	10/17	X 0.73333		46.9000 - 0.8155 bias	36.5000 - -1.5962 bias	4.2000 - 0.7199 bias
University of Illinois at Springfield	10/8	X 0.58333		50.4000 - 4.0616 bias	34.9000 - -0.4920 bias
We Ask America	10/7	X 0.56667		51.0000 - -0.1888 bias	38.0000 - 0.7934 bias	4.0000 - 1.2509 bias
Rasmussen Reports	9/25	X 0.36667		51.0000 - 0.4180 bias	37.0000 - 1.5977 bias
APC Research	9/11	X 0.13333		55.0000 - 6.2339 bias	32.0000 - -7.9124 bias	5.0000 - 1.6797 bias
TOTAL				49.169483	38.748178	2.586462	0.000000	0.000000	0.000000