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Brexit whiff: The pollsters just can’t get it right anymore

Friday, June 24, 2016 7:39
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(Before It's News)

After the United Kingdom’s polling missed the 2015 general election, predicting a popular vote tie between the Conservatives and the Labourites, we had reason to question the predictiveness of the polling on the European Union referendum.

While the science of polling makes sense, it’s clear the practice of polling has diverged from the science. They can’t get anything right!

Boris Johnson in Croydon (Andrew Parsons/ i-Images)

Boris Johnson in Croydon (Andrew Parsons/ i-Images)

Six polls came out at the end, ahead of Thursday’s vote to leave the European Union. They mostly got it wrong:

Poll Margin
Actual result 51-49, Leave +2
Populus 45-55, Remain +10
YouGov 49-51, Remain +2
Ipsos MORI 46-49, Remain +3
Opinium 45-44, Leave +1
ComRes 46-54, Remain +8
TNS 43-41, Leave +2
Average 46-49, Remain +3

The polling was wrong. We see Opinium and TNS looking correct, but they were simply at the fringes. If the polling were accurate, we’d have expected results that swung the other way as well. Not just a Remain +10, but also polls with Leave up by double digits.

Polling averages work when the polls themselves don’t have a systemic bias. We can have no doubt they do. They overstated the left last year, and they overstated the EU this year. I fully expect that they’ll trot out their usual excuse, and say there were “shy leavers” in the same way they always claim the eternal “shy Tories” keep their polls from being accurate.

At least in the UK, we now seem to be at the point where the Dewey Defeats Truman-style polling failures are more common than the actual successes. That’s a sign of an industry in complete disarray. Should we believe US pollsters are more accurate?

The post Brexit whiff: The pollsters just can’t get it right anymore appeared first on RedState.


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