Poll Average Details- Scottish Parliament - Regional Proportional Popular Vote - 2011-05-05 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 Scottish National Party Labour Party Conservative Party Liberal Democrats Scottish Green Party British National Party UK Independence Party Liberal Party Independents Respect Unity Coalition Socialist Labour Party British National Front Solidarity Scottish Unionist Party Pensioners' Party Christian Peoples Alliance Christian Party Pirate Party UK Scottish Homeland Party Ban Bankers Bonuses Party Scottish Socialist Party
TNS BMRB5/2X 1.00000   38.0000 - -0.9894 bias 25.0000 - -1.6200 bias 16.0000 - 3.1778 bias 9.0000 - 1.8468 bias 8.0000 - 3.9582 bias                                
YouGov4/15X 0.71667   35.0000 - -1.6797 bias 33.0000 - -2.2692 bias 12.0000 - -1.8535 bias 7.0000 - 1.9532 bias 6.0000 - 2.9157 bias                                
Progressive Scottish Opinions3/8X 0.08333   37.0000 - -0.8437 bias 44.0000 - 7.6398 bias 11.0000 - -0.7418 bias 4.0000 - -1.4354 bias 2.0000 - -0.4228 bias                               1.0000 - 1.0072 bias
TOTAL 38.016756 30.514598 13.182792 6.235013 3.585619 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 -0.007200