Poll Average Details- NV US Senate - 2006-11-07 20:00:00

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 John E. Ensign None of These CandidatesJack Carter None of These CandidatesDavid K. Schumann Brenda Trainer None of These Candidates
Polimetrix11/5X 1.00000   53.0000 - 1.6908 bias 42.0000 - 1.9452 bias      
Mason-Dixon10/30X 0.90000   54.0000 - 0.8876 bias 37.0000 - 0.3444 bias 1.0000 - -0.2167 bias 1.0000 - 0.1577 bias  
Research 200010/25X 0.81667   55.0000 - 0.1377 bias 41.0000 - 1.1225 bias      
Rasmussen Reports10/17X 0.68333   50.0000 - 1.6097 bias 42.0000 - 0.4145 bias      
Zogby Interactive10/16X 0.66667   52.1000 - 0.8373 bias 43.2000 - 0.0638 bias      
TOTAL 51.923707 40.029268 1.216700 0.842300 0.000000