Poll Average Details- SC US President - R Primary - 2012-01-21 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	Mitt Romney	Newt Gingrich	Ron Paul	Rick Santorum	Michele Bachmann	Herman Cain	Rick Perry	Jon Huntsman	Gary Johnson
Public Policy Polling	1/20	X 1.00000		28.0000 - -0.1800 bias	37.0000 - -0.1800 bias	14.0000 - -0.1800 bias	16.0000 - -0.1800 bias
Tarrance Group (R)	1/18	X 0.96667		31.0000 - 1.0477 bias	29.0000 - 1.0477 bias	9.0000 - 1.0477 bias	8.0000 - 1.0477 bias			3.0000 - 1.0477 bias
Insider Advantage	1/18	X 0.96667		28.8000 - 0.0480 bias	31.6000 - 0.0480 bias	15.2000 - 0.0480 bias	10.9000 - 0.0480 bias			2.9000 - 0.0480 bias
American Research Group	1/18	X 0.96667		32.0000 - 0.7892 bias	33.0000 - 0.7892 bias	19.0000 - 0.7892 bias	9.0000 - 0.7892 bias			4.0000 - 0.7892 bias
Marist Institute	1/17	X 0.95000		34.0000 - -0.4397 bias	24.0000 - -0.4397 bias	16.0000 - -0.4397 bias	14.0000 - -0.4397 bias			4.0000 - -0.4397 bias
Time-CNN	1/17	X 0.95000		33.0000 - 0.8278 bias	23.0000 - 0.8278 bias	13.0000 - 0.8278 bias	16.0000 - 0.8278 bias			6.0000 - 0.8278 bias
Rasmussen Reports	1/12	X 0.86667		28.0000 - 1.5977 bias	21.0000 - 1.5977 bias	16.0000 - 1.5977 bias	16.0000 - 1.5977 bias			6.0000 - 1.5977 bias	5.0000 - 1.5977 bias
Clemson University Palmetto	12/19	X 0.46667		20.8000 - bias	37.3000 - bias	9.3000 - bias	2.2000 - bias	5.7000 - bias		5.2000 - bias	2.8000 - bias
Winthrop University	12/4	X 0.21667		21.5000 - 2.0110 bias	38.4000 - 2.0110 bias	4.1000 - 2.0110 bias	3.1000 - 2.0110 bias	5.4000 - 2.0110 bias	6.6000 - 2.0110 bias	9.0000 - 2.0110 bias	1.4000 - 2.0110 bias	0.0000 - 2.0110 bias
TOTAL				29.277621	28.874219	13.411407	11.320251	4.967244	4.589000	3.879608	2.659963	-2.011000