Poll Average Details- MD 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	Benjamin L. Cardin Benjamin L. Cardin	Michael Steele Richard Shawver	Kevin Zeese	Others	Lih Y. Young
Survey USA	11/5	X 1.00000		49.0000 - 0.5274 bias	46.0000 - 0.3265 bias	3.0000 - 1.0702 bias
Polimetrix	11/5	X 1.00000		51.0000 - 1.9452 bias	45.0000 - 1.6909 bias
Mason-Dixon	11/3	X 0.96667		47.0000 - 0.4277 bias	44.0000 - 0.8543 bias	0.6000 - -0.3342 bias
Reuters/Zogby	10/31	X 0.91667		49.0000 - 1.3729 bias	44.0000 - 0.1506 bias	0.0000 - -1.5475 bias	0.0000 - -0.0447 bias
Potomac, Inc.	10/30	X 0.90000		49.0000 - 1.8255 bias	43.0000 - -2.1179 bias	2.0000 - 0.9079 bias
Zogby Interactive	10/27	X 0.85000		52.8000 - 0.0637 bias	43.5000 - 0.8374 bias
Rasmussen Reports	10/26	X 0.83333		50.0000 - 0.4180 bias	45.0000 - 1.5977 bias
Washington Post/ABC News	10/26	X 0.83333		54.0000 - 2.1552 bias	43.0000 - -1.2476 bias	1.0000 - -0.0847 bias
Garin-Hart-Yang Research (D)	10/24	X 0.80000		52.0000 - 2.7672 bias	40.0000 - -2.3099 bias
Voter/Consumer Research (R)	10/23	X 0.78333		41.0000 - -4.6564 bias	39.0000 - 4.2271 bias	4.0000 - 3.2144 bias
USA Today/Gallup	10/1	X 0.41667		54.0000 - -2.0787 bias	39.0000 - 3.5910 bias
TOTAL				49.088951	42.649112	1.250666	0.044700	0.000000