Ask a survey methodologist to explain random sampling, or how non-probability polls work, and they’ll probably give you a detailed answer. But explaining these topics to a general audience calls for a more concise approach. Over the past three years, Pew Research Center has created a series of short videos to make survey research topics and techniques like these more accessible to non-specialists. We call the series Methods 101. Here’s a closer look at how we distilled the Center’s experience and expertise into this series of four-minute videos.


Transparency is a key part of the Center’s mission. That includes making…

Kimberly Arias

Video & Motion Graphics Producer at Pew Research Center

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