Poll Average Details- SC US President - D Primary - 2016-02-27 18:00:00

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	Hillary Clinton Hillary Clinton	Bernie Sanders Hillary Clinton	Martin J. O'Malley Hillary Clinton	Willie L. Wilson Hillary Clinton
Clemson U "Palmetto Poll"/ David Sparks & Associates	2/24	X 1.00000		64.0000	14.0000
American Research Group	2/18	X 0.90000		61.0000	32.0000
Selzer & Co.	2/17	X 0.88333		53.0000	31.0000
Monmouth University	2/16	X 0.86667		59.0000	30.0000
Public Policy Polling	2/15	X 0.85000		55.0000	34.0000
Opinion Research Corporation (CNN)	2/15	X 0.85000		56.0000	38.0000
Gravis Marketing	2/13	X 0.81667		59.0000	41.0000
YouGov	2/12	X 0.80000		59.0000	40.0000
Marist Institute	1/23	X 0.46667		64.0000	27.0000	2.0000
TOTAL				58.715247	31.677130	2.000000	0.000000