Pew Research Center conducts polls in many countries other than the United States. But the methodology behind our international surveys can vary from country to country, and what works in one place might not work in another.
Our latest Methods 101 video explores some of the ways these surveys differ from traditional probability-based polls.
An estimated two-thirds of tweeted links to popular websites are posted by automated Twitter accounts – not human beings.
The second video in Pew Research Center’s “Methods 101” series helps explain question wording – a concept at the center of sound public opinion survey research – and why it’s important.
The first video in our "Methods 101" series is about random sampling, a concept that undergirds all probability-based survey research. Here's how it works.
The results of the 2016 presidential election came as a surprise to nearly everyone who had been following the national and state election polling