Poll Average Details- WA District 1 - Blanket Primary - 2012-08-07 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 Koster Suzan DelBene Darcy Burner Steve Hobbs Laura Ruderman Larry Ishmael Darshan Rauniyar
Survey USA7/25X 1.00000   38.0000 - 0.3265 bias 17.0000 - 0.5274 bias 13.0000 - 0.5274 bias 5.0000 - 0.5274 bias 6.0000 - 0.5274 bias 2.0000 - 1.6199 bias 2.0000 - 0.5274 bias
Strategies 3607/17X 0.86667   36.0000 - -1.1472 bias 11.0000 - 1.9465 bias 12.0000 - 1.9465 bias 7.0000 - 1.9465 bias 3.0000 - 1.9465 bias 2.0000 - 0.7331 bias 1.0000 - 1.9465 bias
Evans-McDonough7/2X 0.61667  X 1/2 30.0000 - -2.6095 bias 11.0000 - 1.8536 bias 13.0000 - 1.8536 bias 12.0000 - 1.8536 bias 5.0000 - 1.8536 bias    
TOTAL 36.745902 12.477750 11.320662 5.508402 3.381965 0.791829 0.349446