The first video in Pew Research Center’s Methods 101 series helps explain random sampling – a concept that lies at the heart of all probability-based survey research – and why it’s important. Fresh ...

Meat is a highly perishable product. Many methods have been developed for evaluating microbial quality of meats; however, surface sampling is one of the easiest methods to perform, especially in field ...

Zoe Short shows off a monarch butterfly she named Russell in front of UW’s Berry Biodiversity Conservation Center pollinator garden. Short, a recent UW graduate from Douglas, was the lead author of a ...

Here at Pew Research Center, we are often asked about how we conduct our research. We work hard to make our methodologies transparent and understandable, but we also know that survey mode effects and ...