Thomas D. Cook, a professor of sociology, psychology, education, and social policy at Northwestern University, criticizes education researchers’ reluctance to perform randomized experiments. He points ...

A new statistical tool can help researchers get meaningful results when a randomized experiment, considered the gold standard, is not possible. A new statistical tool can help researchers get ...

The number-one job of a marketer is to invest budget wisely to drive sales. That inherently requires accurately measuring the performance of that spending. Yet most advertisers still rely on flawed ...

Randomized experiments have long been a cornerstone of scientific research. And many tech companies run randomized tests to learn from the huge amounts of data their customers generate. In 2019, ...

Economics often borrows ideas from the sciences, yet unlike physics or chemistry, no country has ever run a controlled, pure economic experiment on a national scale. A pure experiment requires ...

If you want to help people start a business, it’s better to give them a loan than a handout. If you want to prevent the spread of HIV and unwanted pregnancies, teach people about safe sex and make ...

The hierarchy of evidence as described by The GRADE Working Group. Figure via Indian Journal of Urology. What should we do to improve health in our city? How can we shift the health of whole ...