Poll Average Details- AL US Senate - Special R Runoff - 2017-09-26 19:00:00

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.

Poll	Mid Date	Time Weight	Internal	Roy Moore Roy Moore	Luther Strange Roy Moore
Trafalgar Group	9/24	X 1.00000		56.7400	40.6900
Cygnal (R)	9/24	X 1.00000		52.3000	40.9000
Øptimus (R)	9/23	X 0.98333		55.4000	44.6000
Emerson College	9/23	X 0.98333		50.0000	40.0000
Strategy Research	9/18	X 0.90000		53.0000	47.0000
JMC Analytics and Polling	9/17	X 0.88333		47.0000	39.0000
Voter Survey Service (R)	9/10	X 0.76667	X 1/2	41.0000	40.0000
Southeast Research	8/31	X 0.60000		52.0000	36.0000
Harper Polling	8/26	X 0.51667		47.0000	45.0000
Opinion Savvy	8/22	X 0.45000		50.3000	32.2000
TOTAL				51.394156	41.065368