Methodological Research

Americans overwhelmingly are aware of the upcoming 2020 census, and more than eight-in-ten say they definitely or probably will participate.

This essay on the lessons we learned about deep learning systems and gender recognition is one part of a three-part examination of issues relating to machine vision technology.

A computer can be trained to predict whether an image shows a man or a woman. Can you identify which parts of the face are most essential to the computer’s decision?

How many U.S. adults use the internet? There are a lot of sources with answers to this question. Yet these different sources can be tricky to reconcile.

We explored how Americans feel about the tenor of debate in the country in a recent major survey about U.S. political disource. Here's how we did it.

Polling in different parts of the world can be very challenging, because what works in one country may not work in a different country.

The Center conducts polls in many countries other than the U.S. – but the methodology behind our international surveys can vary.

Jeffrey S. Passel, senior demographer, on the research techniques used to derive the unauthorized immigrant population estimate in the U.S. and the challenges involved.

Photos that exclusively show men make up the majority of photos that show people; representational differences persist across topics

A key U.S. fertility rate has reached a record low for the fourth year in a row. But is it really a record low? The short answer: It’s complicated.