Poll Average Details- SC US President - D Primary - 2008-01-26 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.

PollMid DateTime WeightInternal Barack Obama Barack ObamaHillary Clinton Barack ObamaJohn Edwards Barack ObamaJoe Biden Barack ObamaDennis J. Kucinich Barack ObamaBill Richardson Barack ObamaChris Dodd Barack ObamaMike Gravel Barack Obama
Zogby International1/25X 1.00000   41.0000 26.0000 19.0000         0.0000
American Research Group1/25X 1.00000   39.0000 36.0000 22.0000         0.0000
Survey USA1/24X 0.98333   43.0000 30.0000 24.0000          
Public Policy Polling1/24X 0.98333   44.0000 24.0000 19.0000          
Mason-Dixon1/23X 0.96667   38.0000 30.0000 19.0000          
Clemson University Palmetto1/23X 0.96667   27.0000 20.0000 17.0000          
Lester & Associates1/22X 0.95000   37.0000 27.0000 15.0000          
Rasmussen Reports1/21X 0.93333   43.0000 28.0000 17.0000          
Insider Advantage1/15X 0.83333   41.0000 31.0000 13.0000          
CBS News12/17X 0.35000   35.0000 34.0000 13.0000 1.0000 1.0000 1.0000    
Opinion Research Corporation (CNN)12/12X 0.26667   34.0000 42.0000 16.0000          
TOTAL 38.897112 28.608303 18.178700 1.000000 1.000000 1.000000 0.000000 0.000000