Poll Average Details- MD Governor - 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 Martin J. O'Malley Martin J. O'MalleyRobert L. "Bob" Ehrlich, Jr. Robert L. "Bob" Ehrlich, Jr.Ed Boyd, Jr. Christopher A. Driscoll Others Ralph Jaffe Charles U. Smith John J. Simmins
Survey USA11/5X 1.00000   50.0000 - 0.5274 bias 47.0000 - 0.3265 bias 1.0000 - 1.0702 bias 0.0000 - -0.1947 bias        
Polimetrix11/5X 1.00000   50.0000 - 1.9452 bias 48.0000 - 1.6909 bias            
Mason-Dixon11/3X 0.96667   45.0000 - 0.4277 bias 45.0000 - 0.8543 bias            
Rasmussen Reports10/31X 0.91667   49.0000 - 0.4180 bias 48.0000 - 1.5977 bias            
Garin-Hart-Yang Research (D)10/30X 0.90000   50.0000 - 2.7672 bias 44.0000 - -2.3099 bias            
Potomac, Inc.10/30X 0.90000   47.0000 - 1.8255 bias 46.0000 - -2.1179 bias 2.0000 - 0.9079 bias          
Zogby Interactive10/27X 0.85000   49.3000 - 0.0637 bias 43.9000 - 0.8374 bias            
Washington Post/ABC News10/26X 0.83333   55.0000 - 2.1552 bias 45.0000 - -1.2476 bias            
Public Opinion Strategies (R)10/26X 0.83333   45.0000 - -1.2825 bias 46.0000 - 2.6066 bias            
Gallup10/1X 0.41667   53.0000 - -2.6491 bias 41.0000 - 2.8840 bias            
TOTAL 48.273666 45.303244 0.480363 0.194700 0.000000 0.000000 0.000000 0.000000