Poll Average Details- MA Governor - 2006-11-07 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	Deval L. Patrick Christopher F. Gabrieli	Kerry Murphy Healey Others	Christy P. Mihos	Grace Ross	Others
Survey USA	11/1	X 1.00000		55.0000 - 0.5274 bias	34.0000 - 0.3265 bias	6.0000 - 1.6199 bias	3.0000 - 1.1154 bias
Zogby Interactive	10/27	X 0.91667		58.1000 - 0.0637 bias	32.7000 - 0.8374 bias	4.0000 - -0.0999 bias
University of New Hampshire	10/25	X 0.88333		54.0000 - 2.6652 bias	29.0000 - -2.2994 bias	8.0000 - 3.1108 bias	2.0000 - 0.4733 bias
Suffolk University	10/23	X 0.85000		53.0000 - 1.6356 bias	26.0000 - -2.1317 bias	9.0000 - 1.6824 bias	2.0000 - 1.6218 bias
Rasmussen Reports	10/20	X 0.80000		53.0000 - 0.4180 bias	29.0000 - 1.5977 bias	9.0000 - 1.2092 bias
Bay State Poll - Merrimack College	9/24	X 0.36667		54.0000 - 2.9570 bias	21.0000 - -2.6384 bias	5.0000 - 0.6573 bias	1.0000 - -0.7113 bias
TOTAL				53.451776	30.110011	5.502157	1.349075	0.000000