Surveys are hard work

John Villasenor’s study on free speech attitudes among college students has received some attention. In one of the questions he asked, only 47% of students favored, “an open learning environment where students are exposed to all types of speech and viewpoints, even if it means allowing speech that is offensive […] Read more »

We were unfair to traditional pollsters

A couple days ago, Slate ran an article by David Rothschild and myself, “We Need to Move Beyond Election-Focused Polling,” in which we wrote about various aspects of the future of opinion surveys. One aspect of this article was misleading. CONT. Andrew Gelman, Columbia U. Read more »

A 2016 Review: Why Key State Polls Were Wrong About Trump

Nearly seven months after the presidential election, pollsters are still trying to answer a question that has rattled trust in their profession: Why did pre-election polls show Hillary Clinton leading Donald J. Trump in the battleground states that decided the presidency? Is political polling fundamentally broken? Or were the errors […] Read more »