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.

PollMid DateTime WeightInternal Benjamin L. Cardin Benjamin L. CardinMichael Steele Richard ShawverKevin Zeese Others Lih Y. Young
Survey USA11/5X 1.00000   49.0000 - 0.4044 bias 46.0000 - 0.3780 bias 3.0000 - 1.1303 bias    
Polimetrix11/5X 1.00000   51.0000 - 1.9452 bias 45.0000 - 1.6908 bias      
Mason-Dixon11/3X 0.96667   47.0000 - 0.3444 bias 44.0000 - 0.8876 bias 0.6000 - -0.3549 bias    
Reuters/Zogby10/31X 0.91667   49.0000 - 1.3729 bias 44.0000 - 0.1506 bias 0.0000 - -1.5475 bias 0.0000 - -0.0447 bias  
Potomac, Inc.10/30X 0.90000   49.0000 - 1.8255 bias 43.0000 - -2.1179 bias 2.0000 - 0.9079 bias    
Zogby Interactive10/27X 0.85000   52.8000 - 0.0638 bias 43.5000 - 0.8373 bias      
Washington Post/ABC News10/26X 0.83333   54.0000 - 1.7517 bias 43.0000 - -0.7766 bias 1.0000 - -0.0847 bias    
Rasmussen Reports10/26X 0.83333   50.0000 - 0.4145 bias 45.0000 - 1.6097 bias      
Garin-Hart-Yang Research (D)10/24X 0.80000   52.0000 - 2.4851 bias 40.0000 - -1.9998 bias      
Voter/Consumer Research (R)10/23X 0.78333   41.0000 - -4.6564 bias 39.0000 - 4.2271 bias 4.0000 - 3.2144 bias    
USA Today/Gallup10/1X 0.41667   48.0000 - -2.5395 bias 36.0000 - 4.0518 bias      
TOTAL 48.923391 42.415124 1.243242 0.044700 0.000000