Poll Average Details- CA - District 10 - Special Election - 2009-09-01 22:00:00

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 Garamendi David J. Harmer Mark J. DeSaulnier Joan Buchanan Anthony Woods Chris Bunch David Peterson Mark A. Loos Jeremy Cloward Jerome H. "Jerry" Denham Mary C. McIlroy Gary W. Clift John R. Toth Adriel Hampton
Survey USA8/28X 1.00000   25.0000 - 0.5274 bias 20.0000 - 0.3265 bias 16.0000 - 0.5274 bias 12.0000 - 0.5274 bias 9.0000 - 0.5274 bias 5.0000 - 0.3265 bias 3.0000 - 0.3265 bias 2.0000 - 0.3265 bias            
Tulchin Research/Acosta|Salazar8/4X 0.60000   31.0000 - 5.8964 bias 5.0000 - -14.6213 bias 21.0000 - 5.8964 bias 17.0000 - 5.8964 bias 9.0000 - 5.8964 bias                 1.0000 - 5.8964 bias
TOTAL 24.709225 19.653925 15.334225 11.334225 6.459225 4.673500 2.673500 1.673500 0.000000 0.000000 0.000000 0.000000 0.000000 -4.896400