Pew Research Center’s survey on international knowledge covers facts about global leaders, international institutions and geography, among other topics. The following criteria are used to evaluate how ...

The Wong-Baker Faces Pain Rating scale is a self-assessment tool that helps communication about physical pain. It uses a combination of faces, numbers, and words, providing multiple ways for a person ...

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Pew Research Center has a long history measuring the public’s knowledge about ...

From Wilbur Lincoln Scoville’s lab in 1912 to the set of "Hot Ones" with Kyan Khojandi, the same question persists: how far ...

Smart scales track changes in your muscle mass, body fat percentage and other health metrics — but how do smart scales work, and how accurate are they? When you purchase through links on our site, we ...