Poll Average Details- MA US President - D Primary - 2008-02-05 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 ClintonBarack Obama Hillary ClintonJohn Edwards Hillary ClintonDennis J. Kucinich Hillary ClintonJoe Biden Hillary ClintonChris Dodd Hillary ClintonBill Richardson Hillary ClintonMike Gravel Hillary Clinton No Preference Hillary Clinton Write-In Hillary Clinton
Survey USA2/3X 1.00000   56.0000 39.0000                
Suffolk University2/3X 1.00000   44.0000 46.0000                
Rasmussen Reports1/28X 0.90000   43.0000 37.0000 11.0000              
Western New England University1/26X 0.86667   43.0000 15.0000 8.0000              
KRC Communications Research1/12X 0.63333   37.0000 25.0000 14.0000 1.0000            
TOTAL 45.318182 33.439394 10.708333 1.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000