Poll Average Details- CA US Senate - 2016-11-08 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 Kamala Harris No EndorsementLoretta B. Sanchez No Endorsement
SurveyMonkey11/7X 1.00000   52.0000 - 2.6000 bias 31.0000 - 2.6000 bias
Insights West11/6X 0.98333   50.0000 - 0.5620 bias 28.0000 - 0.5620 bias
Survey USA10/31X 0.88333   47.0000 - 0.5274 bias 27.0000 - 0.5274 bias
Field Poll10/31X 0.88333   47.0000 - 2.0302 bias 23.0000 - 2.0302 bias
Greenberg Quinlan Rosner Research (D)10/30X 0.86667   46.0000 - 2.2053 bias 33.0000 - 2.2053 bias
Public Policy Institute of California (PPIC)10/23X 0.75000   51.0000 - 0.3912 bias 24.0000 - 0.3912 bias
YouGov10/14X 0.60000   41.0000 - 1.4134 bias 22.0000 - 1.4134 bias
Sacramento State University10/13X 0.58333   49.0000 - 1.2883 bias 24.0000 - 1.2883 bias
TOTAL 46.760908 25.539534