Poll Average Details- MN US Senate - 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	Amy Klobuchar	Mark Kennedy	Robert "Rob" Fitzgerald	Michael James Cavlan	Ben Powers	Others	Peter Idusogie	Charles A. Aldrich	John Uldrich	Rebecca Williamson
Princeton Survey Research Associates	11/6	X 1.00000		55.0000 - 1.8159 bias	34.0000 - -1.1956 bias	3.0000 - 0.7498 bias
Polimetrix	11/5	X 0.98333		57.0000 - 1.9452 bias	39.0000 - 1.6909 bias
Humphrey Institute/University of Minnesota	10/28	X 0.85000		55.0000 - 1.3451 bias	33.0000 - -1.4775 bias	3.0000 - 1.9238 bias
Saint Cloud University	10/27	X 0.83333		56.0000 - 3.4612 bias	31.0000 - -3.5654 bias	3.0000 - 4.7569 bias
Zogby Interactive	10/27	X 0.83333		50.5000 - 0.0637 bias	42.8000 - 0.8374 bias
Rasmussen Reports	10/25	X 0.80000		53.0000 - 0.4180 bias	39.0000 - 1.5977 bias
Survey USA	10/23	X 0.76667		55.0000 - 0.5274 bias	39.0000 - 0.3265 bias	3.0000 - 0.2458 bias	1.0000 - 1.0702 bias	1.0000 - 0.9368 bias
Minnesota Republican Party	9/25	X 0.30000		49.0000 - -5.9287 bias	41.0000 - 5.6805 bias	4.0000 - 1.0233 bias
Mason-Dixon	9/20	X 0.21667		52.0000 - 0.4277 bias	37.0000 - 0.8543 bias	1.0000 - 1.1771 bias	1.0000 - -0.3342 bias
TOTAL				53.198142	36.905473	1.176574	0.239244	0.063200	0.000000	0.000000	0.000000	0.000000	0.000000