Poll Average Details- Proposition 19 - Legalizes Marijuana Under California but not Federal Law - 2010-11-02 23:00:00

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	No	Yes
Opinion Research Corporation (CNN)	10/26	X 1.00000		53.0000 - -3.2099 bias	45.0000 - 3.2099 bias
Field Poll	10/26	X 1.00000		49.0000 - -1.3653 bias	42.0000 - 1.3653 bias
Suffolk University	10/24	X 0.96667		55.0000 - -3.9137 bias	40.0000 - 3.9137 bias
Public Policy Polling	10/23	X 0.95000		48.0000 - -0.9410 bias	45.0000 - 0.9790 bias
Los Angeles Times	10/20	X 0.90000		51.0000 - -0.4988 bias	39.0000 - 0.4988 bias
Survey USA	10/18	X 0.86667		44.0000 - -5.8017 bias	48.0000 - 6.7764 bias
Public Policy Institute of California (PPIC)	10/17	X 0.85000		49.0000 - -1.3477 bias	44.0000 - 1.3477 bias
Pulse Opinion Research	10/16	X 0.83333		47.0000 - -2.9186 bias	46.0000 - 2.9186 bias
EMC Research	10/14	X 0.80000	X 1/2	41.0000 - -11.1882 bias	56.0000 - 11.1882 bias
TOTAL				52.120057	41.148504