Poll Average Details- OH US Senate - 2006-11-07 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.

Poll	Mid Date	Time Weight	Internal	Sherrod Brown Sherrod Brown	Mike DeWine Mike DeWine	Richard A. Duncan
Polimetrix	11/5	X 1.00000		58.0000 - 1.9452 bias	40.0000 - 1.6909 bias
University of Cincinnati (The Ohio Poll)	11/5	X 1.00000		56.0000 - 0.6231 bias	44.0000 - 0.3091 bias
Mason-Dixon	11/3	X 0.96667		50.0000 - 0.4277 bias	44.0000 - 0.8543 bias
Columbus Dispatch	11/3	X 0.96667		62.0000 - 2.1707 bias	38.0000 - -1.5633 bias
Reuters/Zogby	10/31	X 0.91667		49.0000 - 1.3729 bias	42.0000 - 0.1506 bias
Opinion Research Corporation (CNN)	10/29	X 0.88333		54.0000 - 0.8608 bias	43.0000 - 0.4312 bias
Zogby Interactive	10/27	X 0.85000		48.7000 - 0.0637 bias	47.3000 - 0.8374 bias
Opinion Consultants	10/25	X 0.81667		51.0000 - -1.0352 bias	44.0000 - 2.2601 bias
Survey USA	10/25	X 0.81667		57.0000 - 0.5274 bias	37.0000 - 0.3265 bias
LA Times	10/23	X 0.78333		47.0000 - 1.0135 bias	39.0000 - 1.0817 bias
Quinnipiac University	10/15	X 0.65000		53.0000 - 1.0754 bias	41.0000 - -0.2682 bias
New York Times - CBS News	10/15	X 0.65000		49.0000 - 2.0567 bias	35.0000 - -1.4721 bias
Rasmussen Reports	10/12	X 0.60000		48.0000 - 0.4180 bias	42.0000 - 1.5977 bias
University of Akron	9/29	X 0.38333		41.5000 - -1.3826 bias	41.7000 - 1.9352 bias
TOTAL				51.670401	40.871403	0.000000