Poll Average Details- UK Parliament - Popular Vote - 2010-05-06 16:00:00

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 Conservative Party Labour Party Liberal Democrats UK Independence Party Scottish National Party British National Party Plaid Cymru Others Democratic Unionist Party Sinn Féin Social Democratic and Labour Party Ulster Unionist Party Alliance Party of Northern Ireland Scottish Socialist Party Independent Kidderminster Hospital & Health Concern English Democrats Christian Party Traditional Unionist Voice Trade Unionist and Socialist Coalition Green Party of England & Wales Respect Unity Coalition
ICM Research4/30X 1.00000   36.0000 - -0.2225 bias 29.0000 - 2.2922 bias 27.0000 - 3.5534 bias                                    
YouGov4/29X 0.98333   34.0000 - -2.2623 bias 27.0000 - -3.7254 bias 28.0000 - 2.5136 bias 4.0000 - 0.5460 bias 2.0000 - -2.1958 bias 3.0000 - 0.1919 bias 2.0000 - 0.3723 bias                         1.0000 - 1.6851 bias 0.0000 - 0.2139 bias
Savanta ComRes4/27X 0.95000   36.0000 - -0.4062 bias 29.0000 - 1.7818 bias 26.0000 - 0.8389 bias                                    
Angus Reid4/26X 0.93333   33.0000 - -2.1064 bias 23.0000 - -5.2854 bias 30.0000 - 7.9015 bias 5.0000 - 2.0576 bias 2.0000 - 0.4069 bias 2.0000 - 0.1612 bias 0.0000 - -0.5570 bias                         2.0000 - 1.0999 bias  
MORI4/23X 0.88333   36.0000 - -6.0769 bias 30.0000 - 1.3636 bias 23.0000 - 0.8628 bias 3.0000 - 0.0902 bias 3.0000 - 0.9374 bias 2.0000 - 1.0802 bias 1.0000 - 0.4531 bias                         1.0000 - 1.8598 bias  
BPIX4/16X 0.76667   31.0000 - -2.0611 bias 28.0000 - 1.7725 bias 32.0000 - 12.1385 bias                                    
Populus4/13X 0.71667   36.0000 - 1.6886 bias 33.0000 - 2.9843 bias 21.0000 - 2.5834 bias                                    
Harris Interactive4/8X 0.63333   37.0000 - 6.8962 bias 27.0000 - 2.3986 bias 22.0000 - 2.5551 bias                                    
TOTAL 35.738249 27.913614 22.329886 3.111785 2.655260 1.889286 0.929833 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 -0.211814 -0.213900