Poll Average Details- MI US Senate - 2014-11-04 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 Gary Peters Gary PetersTerri Lynn Land Terri Lynn LandJim Fulner Chris Wahmhoff Richard A. Matkin Write-In
Mitchell Research & Communications11/2X 1.00000   52.0000 - 1.8111 bias 40.0000 - -0.3165 bias 2.0000 - 0.5871 bias 1.0000 - 0.2009 bias 1.0000 - 0.2509 bias  
Public Policy Polling11/2X 1.00000   54.0000 - 1.1680 bias 41.0000 - -0.1800 bias        
EPIC/MRA10/28X 0.91667   50.0000 - 0.7445 bias 35.0000 - 0.7895 bias        
YouGov10/23X 0.83333   49.0000 - 1.4134 bias 41.0000 - 0.0288 bias        
Clarity Campaign Labs10/20X 0.78333  X 1/2 48.0000 - 3.9429 bias 33.0000 - -1.3124 bias        
Wenzel Strategies (R)10/7X 0.56667   46.9000 - -3.2645 bias 44.3000 - 4.5835 bias        
Marketing Resource Group10/1X 0.46667   47.0000 - 1.9320 bias 36.0000 - -1.2748 bias        
Target Insyght9/24X 0.35000   48.0000 - 3.4951 bias 38.0000 - -1.7528 bias        
We Ask America9/19X 0.26667   42.0000 - -0.1888 bias 39.0000 - 0.7934 bias 3.0000 - 1.2509 bias 1.0000 - 0.7078 bias 1.0000 - 0.1975 bias  
Rasmussen Reports9/18X 0.25000   41.0000 - 0.4180 bias 39.0000 - 1.5977 bias        
Magellan Data & Mapping Strategies (R)9/15X 0.20000   45.0000 - -0.5207 bias 40.0000 - 0.4956 bias 5.0000 - 1.3094 bias 3.0000 - 2.1484 bias 2.0000 - 1.6372 bias  
Denno-Noor Research (D)9/13X 0.16667   44.7000 - 0.7212 bias 37.7000 - 2.1962 bias        
Suffolk University9/10X 0.11667   45.6000 - 1.6356 bias 36.8000 - -2.1317 bias 3.2000 - 1.1435 bias 1.4000 - 0.4664 bias 1.8000 - 1.6824 bias  
Glengariff Group9/5X 0.03333   47.0000 - 0.0853 bias 36.5000 - -0.5761 bias        
TOTAL 47.975720 38.635929 1.804656 0.730269 0.662766 0.000000