Frank Graves seems to think he's under attack by the Tories because he released a poll that was not consistent with the Tories own internal polling and Frankenstein isn't happy. I'll admit that it is rare for a political party to come out and disagree with a poll that shows them with a substantial lead in majority territory, but nothing in the Conservative statement actually accused Graves of doctoring his results. What they said was “In the past pollsters have sometimes reported support for our Party that is unusually high relative to the prevailing data, only to have the anomaly corrected in a subsequent poll, giving the artificial impression of negative momentum”.
I don't think that EKOS manipulates its results, but I do question the randomness of their poll solicitation methods. While EKOS does have a tendency to produce outliers, their most consistent overvaluation is of support for the Green Party. The CBC pays Graves to produce weekly polling, and I'd like to know more about how they collect votes. Does every Canadian have an equal probability of getting a phone call from EKOS? Do they rely on voluntary internet polling? Nanos has the Green Party consistently at about 30% less support than EKOS does. What is the reason for that systemic difference between Nanos and EKOS? It has to be in the method. So what's different about their method? From Sept 1st 2008 to Nov 2008 EKOS averaged the Green Party at 10.8%. Nanos averaged them at 7.7%. In the October 2008 election, the Greens scored 6.8% of the popular vote.
Where I most often find myself disagreeing with Graves is not necessarily his numbers, but his analysis of his own data on Canadian political news shows. Anytime he reports a drop in Conservative support on the Soloman Show, his face lights up like a Christmas tree of excitement. I disagree with his punditry more than his actual numbers, so frankly I don't have a problem with the Tories sending out an internal memo telling their people to curb their enthusiasm. They didn't say this in a press release, they circulated an internal memo which was pounced on by Taber and friends in the media. This is the guy who advised the Liberals to start a culture war against old men in Alberta. He is as much a pundit as a pollster, and there is nothing wrong with disagreeing with a pundit.
I could run a poll on my website that asks which party you will vote for, and the Tories will score 90%. Does that mean that the Tories will win 90% support in the next election? No, it means that the people contributing to my polls is not a random sample of the Canadian population.