Anyone who’s read my stuff with any regularity is acutely aware of my disdain for the way many observational studies are conducted and interpreted in health and nutrition research, as well as my ...

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, ...

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 ...