The tower of polls, biases, weights, and corrections
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The tower of polls, biases, weights, and corrections

No matter what poll-based content you read, you are not just reviewing what the data show. You are reading data, corrected for bias, weighted for lack of representation, scored for bias, aggregated, and then manipulated by a model. Each of these “corrections” is a human decision. These models are valuable, but they do not represent…

How trolls divide America and what you can do about it
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How trolls divide America and what you can do about it

It’s clear that Russians interfered in our elections. But their objective was not primarily to elect Donald Trump — it was to make us hate each other. And they’re succeeding. New information on Russian troll activity is now available, including a corpus of 3 million tweets from Russian trolls who were part of a foreign…

5 reasons the Senate race polls in Alabama are wrong
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5 reasons the Senate race polls in Alabama are wrong

Who’s going to win the special election for the next U.S. Senator from Alabama? According to the two most recent polls, it’s either Republican Roy Moore by 9 points or Democrat Doug Jones by 10 points. How is this much variation even possible? Unless a pollster stands over the shoulder of each individual who votes…