Poll Average Details- CAN House of Commons - Popular Vote - 2011-05-02 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.

Poll	Mid Date	Time Weight	Internal	Conservative Party	New Democratic Party	Liberal Party	Bloc Québécois	Green Party	Others	Independent	Communist Party	Christian Heritage Party	Progressive Canadian Party	Marxist-Leninist Party	Marijuana Party	Canadian Action Party	Libertarian Party	First Peoples National Party	Western Block	Animal Alliance Environment Voters	neorhino.ca	Pirate Party
Ekos Research Associates	4/30	X 1.00000		34.6000 - 0.4387 bias	31.4000 - 1.8079 bias	20.4000 - -3.0634 bias	5.4000 - 0.0676 bias	6.3000 - 1.6785 bias
Forum Research	4/30	X 1.00000		35.0000 - -2.4669 bias	33.0000 - 1.5050 bias	19.0000 - -1.9734 bias
Nanos Research	4/30	X 1.00000		37.0000 - -1.4259 bias	30.6000 - 1.4413 bias	22.7000 - 0.0404 bias	5.5000 - -0.3086 bias	3.2000 - 0.7857 bias
Angus Reid	4/29	X 0.98333		37.0000 - -3.1788 bias	33.0000 - 2.3125 bias	19.0000 - 1.6021 bias	6.0000 - 0.3465 bias	4.0000 - 1.2338 bias
Ipsos-Reid	4/21	X 0.85000		43.0000 - -20.4079 bias	24.0000 - -9.7062 bias	21.0000 - -17.5077 bias	6.0000 - -4.5818 bias	4.0000 - -1.7500 bias
Environics	4/17	X 0.78333		39.0000 - 0.4937 bias	22.0000 - 4.2708 bias	24.0000 - -6.4640 bias	9.0000 - 0.7732 bias	6.0000 - 1.6483 bias
COMPAS	4/11	X 0.68333		45.0000 - 2.7832 bias	16.0000 - 0.5000 bias	24.0000 - -0.4889 bias	8.0000 - 1.3388 bias	7.0000 - -0.7728 bias
TOTAL				44.247286	28.279989	26.610486	7.428534	4.593682	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