Poll Average Details- OH US Senate - 2018-11-06 18:30:00

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	Sherrod Brown Sherrod Brown	Jim Renacci Melissa Ackison	Stephen Faris
Change Research	11/4	X 1.00000		53.0000 - 1.4957 bias	43.0000 - -1.2913 bias
Research Co.	11/3	X 0.98333		53.0000 - 2.3692 bias	39.0000 - -0.3728 bias
Cygnal (R)	10/31	X 0.93333		52.0000 - 0.0766 bias	42.0000 - 0.1689 bias
Gravis Marketing	10/30	X 0.91667		46.0000 - 1.1590 bias	37.0000 - 0.2608 bias
Emerson College	10/28	X 0.88333		49.0000 - 0.8084 bias	43.0000 - 0.6906 bias
Baldwin Wallace University	10/27	X 0.86667		49.2000 - 3.7908 bias	31.8000 - -4.6995 bias
Reuters/Ipsos	9/21	X 0.26667		50.0000 - 3.1158 bias	39.0000 - 0.8563 bias
Triton Polling	9/20	X 0.25000		52.5000 - 2.3272 bias	42.3000 - -2.8409 bias
Marist Institute	9/20	X 0.25000		52.0000 - 0.7635 bias	39.0000 - -0.4397 bias
Morning Consult	9/11	X 0.10000		48.0000 - 3.1429 bias	31.0000 - -1.6394 bias
TOTAL				48.856080	40.203844	0.000000