Poll Average Details- LA US Senate - Runoff - 2014-12-06 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 William "Bill" Cassidy Mary Landrieu
Rasmussen Reports11/19X 1.00000   56.0000 - 1.6097 bias 41.0000 - 0.4145 bias
Vox Populi11/17X 0.96667   53.0000 - -0.3032 bias 42.0000 - 2.4096 bias
Civitas Institute (R)11/14X 0.91667   59.0000 - -1.5685 bias 38.0000 - 1.1682 bias
Public Policy Polling11/1X 0.70000   48.0000 - 0.0973 bias 47.0000 - 0.9088 bias
Suffolk University10/26X 0.60000   48.0000 - -2.5107 bias 41.0000 - 1.8265 bias
YouGov10/23X 0.55000   46.0000 - 0.0717 bias 42.0000 - 1.3621 bias
Multi-Quest10/19X 0.48333   43.0000 - -0.9054 bias 40.0000 - 0.6773 bias
Opinion Research Corporation (CNN)9/25X 0.08333   50.0000 - 0.4310 bias 47.0000 - 0.8611 bias
TOTAL 52.054419 40.299692