Poll Average Details- NH US Senate - 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.

Poll	Mid Date	Time Weight	Internal	Jeanne Shaheen Jeanne Shaheen	John Sununu Scattering	Ken Blevens
YouGov	11/1	X 1.00000		49.0000 - 1.4134 bias	41.0000 - 0.0288 bias
American Research Group	10/30	X 0.96667		53.0000 - -0.0031 bias	41.0000 - 0.7892 bias
Rasmussen Reports	10/30	X 0.96667		52.0000 - 0.4180 bias	44.0000 - 1.5977 bias
Survey USA	10/30	X 0.96667		53.0000 - 0.5274 bias	40.0000 - 0.3265 bias	6.0000 - 1.3296 bias
Strategic Vision (R)	10/29	X 0.95000		48.0000 - -0.4798 bias	41.0000 - 1.1151 bias
Suffolk University	10/29	X 0.95000		48.0000 - 1.6356 bias	39.0000 - -2.1317 bias	3.0000 - 1.1435 bias
University of New Hampshire	10/28	X 0.93333		48.0000 - 2.6652 bias	40.0000 - -2.2994 bias	1.0000 - 0.3437 bias
Research 2000	10/19	X 0.78333		50.0000 - 1.1463 bias	43.0000 - 0.1379 bias
Public Opinion Strategies (R)	9/3	X 0.01667		46.0000 - -1.2825 bias	44.0000 - 2.6066 bias	3.0000 - 2.4568 bias
TOTAL				49.231896	41.136105	2.406975