Poll Average Details- IA US President - D Caucus - 2016-02-01 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 Hillary Clinton Hillary ClintonBernie Sanders Hillary ClintonMartin J. O'Malley Hillary Clinton Uncommitted Hillary Clinton
Emerson College1/31X 1.00000   50.6000 42.6000 4.1000  
Quinnipiac University1/31X 1.00000   46.0000 49.0000 3.0000  
Overtime Politics1/30X 0.98333   47.0000 48.0000 3.0000  
Selzer & Co.1/29X 0.96667   45.0000 42.0000 3.0000  
Public Policy Polling1/27X 0.93333   48.0000 40.0000 7.0000  
Gravis Marketing1/27X 0.93333   53.0000 42.0000 5.0000  
Monmouth University1/26X 0.91667   47.0000 42.0000 6.0000  
Marist Institute1/26X 0.91667   48.0000 45.0000 3.0000  
American Research Group1/24X 0.88333   45.0000 48.0000 3.0000  
Anderson Robbins (D) / Shaw & Company (R) - FOX News1/21X 0.83333   48.0000 42.0000 3.0000  
YouGov1/21X 0.83333   46.0000 47.0000 5.0000  
Opinion Research Corporation (CNN)1/20X 0.81667   43.0000 51.0000 4.0000  
Loras College1/18X 0.78333   59.0000 30.0000 7.0000  
TOTAL 48.057910 43.847458 4.276836 0.000000