Poll Average Details- MI US President - 2012-11-06 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.

PollMid DateTime WeightInternal Barack Obama Barack ObamaMitt Romney Virgil H. Goode, Jr. Gary Johnson Ross C. "Rocky" Anderson Jerome "Jerry" White Stewart Alexander Tom Hoefling Jill Stein
YouGov11/3X 1.00000   51.0000 - 1.3621 bias 44.0000 - 0.0717 bias              
Public Policy Polling11/3X 1.00000   52.0000 - 0.9088 bias 46.0000 - 0.0973 bias              
Foster McCollum White & Baydoun (D)11/2X 0.98333   46.2400 - -3.0251 bias 46.8600 - 6.0841 bias              
Rasmussen Reports11/1X 0.96667   52.0000 - 0.4145 bias 47.0000 - 1.6097 bias              
Grove Insight (D)11/1X 0.96667   48.0000 - 2.8561 bias 41.0000 - -1.0940 bias              
Glengariff Group10/29X 0.91667   47.7000 - 0.7487 bias 45.0000 - -0.5549 bias              
EPIC/MRA10/29X 0.91667   48.0000 - 0.7465 bias 42.0000 - 0.9419 bias              
Angus Reid10/20X 0.76667   52.0000 - 0.9880 bias 43.0000 - 1.4011 bias              
Denno-Noor Research (D)10/10X 0.60000   44.2000 - 0.7188 bias 40.5000 - 2.1981 bias              
QStar News10/10X 0.60000   44.7100 - -5.3833 bias 52.4000 - 4.5129 bias   1.8900 - 1.5598 bias          
Gravis Marketing10/8X 0.56667   46.0000 - 0.7560 bias 44.0000 - 0.5484 bias              
We Ask America9/27X 0.38333   52.0000 - -0.1522 bias 39.9000 - 0.7827 bias   1.1000 - 1.2509 bias          
Marketing Resource Group9/14X 0.16667   47.5000 - 1.9569 bias 42.3000 - -1.4427 bias              
Opinion Research Corporation (CNN)9/14X 0.16667   52.0000 - 0.8611 bias 44.0000 - 0.4310 bias 1.0000 - 0.6797 bias   0.0000 - -0.1088 bias       1.0000 - 1.3465 bias
TOTAL 48.603011 43.166609 0.320300 0.142653 0.108800 0.000000 0.000000 0.000000 -0.346500