Poll Average Details- PNA President - 2005-01-09 20:00:00

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 Mahmoud (Abu Mazen) Abbas Mustafa Barghouti Tayseer Khaled Bassam Salhi Abdel Halim al-Ashqar Abdel Karim Shbier Alsaied Barakh
Palestinian Center for Public Opinion Studies1/7X 1.00000   51.8000 - -13.7059 bias 25.3000 - 2.0803 bias 6.1000 - 2.5144 bias 5.6000 - 2.8702 bias 3.2000 - 2.0803 bias 3.1000 - 2.0803 bias 2.1000 - 2.0803 bias
Center for Opinion Polls and Survey Studies1/2X 0.91667   59.0000 - -9.5492 bias 28.5000 - 2.5412 bias 3.5000 - -0.3533 bias 2.7000 - -0.2621 bias 3.1000 - 2.5412 bias 4.1000 - 2.5412 bias 1.8000 - 2.5412 bias
Palestinian Center for Policy and Survey Research12/31X 0.88333   65.1000 - 3.6093 bias 22.0000 - 0.0829 bias 1.5000 - -2.1344 bias 1.0000 - -1.8065 bias 2.0000 - 0.0829 bias 0.1000 - 0.0829 bias 0.5000 - 0.0829 bias
Jerusalem Media and Communication Centre12/20X 0.70000   42.5000 - -0.1742 bias 14.6000 - -0.0229 bias 1.8000 - -0.9311 bias 2.6000 - 1.1970 bias 0.7000 - -0.0229 bias 0.5000 - -0.0229 bias 0.9000 - -0.0229 bias
State Information Service12/8X 0.50000   53.4000 - 15.2823 bias 8.9000 - -2.8894 bias 1.1000 - -2.0664 bias 0.8000 - -1.6584 bias 0.1000 - -2.8894 bias 0.2000 - -2.8894 bias 0.4000 - -2.8894 bias
TOTAL 57.897560 20.626525 3.455787 2.533858 1.331525 1.093609 0.499859