As we enter the final week of the election, a slew of last minute polls that will emerge. This is a good time to remind ourselves that we should not put too much stock in what they say. As I said in an earlier post, pollsters have to make adjustments to the raw data and this introduces systematic uncertainties so that the actual margin of error could be about double the statistical one.
Josh Clinton has done an interesting analysis to try and get a better idea of how much these adjustments can affect the results.
He says that pollsters have to address four questions.
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