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 ...

Consider a randomized experiment in which patients are assigned to one of two treatment groups according to a randomization process that allocates fifty patients to each group. After a specified ...

Randomized controlled trials (RCTs; sometimes referred to as A/B tests) are considered the gold standard for evidence in science and medicine. If you took anything away from your Research Methods 101 ...

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 ...

Narrator: In the era of big data, more and more companies are using experimentation to make decisions about business strategy. An e-commerce company might be wondering how additional product ...