New Weights for Polling Firms

Just a short note to inform you that I've tweaked the reliability weighting of each polling firm. I've used the 2008 Canadian and Quebec and 2009 Nova Scotian and British Columbian elections in order to determine the ratings. Polling accuracy, with a small allowance for delay between the poll being completed and voting day, is used to calculate the polling firms' rating.

The 2008 federal election is weighted twice as heavily as each provincial election.

Corporate Research Associates - 1.21
Angus-Reid Strategies - 1.11
Léger Marketing - 0.84
Ipsos-Reid - 0.84
EKOS Research Associates - 0.79
Mustel Group - 0.72
Nanos Research - 0.70
Environics - 0.68
Harris-Decima - 0.67
Strategic Counsel - 0.52
Segma Unimarketing - 0.47
CROP - 0.12