@gemelliz There was a great Macleans magazine bullseye data visualization in 2021 comparing Canadian pollsters biases or ‘House effects’ against actual election outcomes. (Unfortunately, the image of the visualization doesn’t load anymore but the text remains.)
Angus Reid was the significant outlier - here’s the Macleans commentary: “We see here the opposite tendency of IRG: Virtually all of Angus Reid’s polls are located in the upper-left quadrant, meaning high CPC and low LPC numbers compared to the poll average. This also shows a systematic house effect. Of note: In the last two federal elections, the Angus Reid Institute was well within the margin of error away from the final CPC result (but it underestimated the Liberal vote.) And interestingly, the measurable tilt towards the federal conservatives does not translate into a noticeable skew in Angus Reid’s provincial polls.”
https://macleans.ca/politics/ottawa/federal-election-2021-know-your-pollsters/
338.com gives Angus Reid a B+ middle of the pack rating based on recent provincial elections. With a C on the election in Quebec though, any of their national poll results have to be doubtful, so Macleans 2021 analysis appears to hold.
#CanPoll #CanPoli #pollsters #AngusReid