Recent enthusiasm for field experiments, and especially for natural field experiments (NFEs), in which subjects go about their daily activities unaware that any study is taking place, has sometimes ...

Editor’s note: This is part of a series called “The Day Tomorrow Began,” which explores the history of breakthroughs at UChicago. Learn more here. A field experiment is a research method that uses ...

“The use of animals in research, teaching and testing is acceptable only if it promises to contribute to the understanding of environmental principles or issues; fundamental biological principles; or ...