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 Annals of Statistics, Vol. 42, No. 3 (June 2014), pp. 850-871 (22 pages) We propose a consistent estimator of sharp bounds on the variance of the difference-in-means estimator in completely ...

Proceedings of the National Academy of Sciences of the United States of America, Vol. 113, No. 27 (July 5, 2016), pp. 7383-7390 (8 pages) We provide a principled way for investigators to analyze ...

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, ...

Dean Yang is a professor in the Department of Economics and the Ford School of Public Policy at the University of Michigan. Dean’s doctoral research was based on a natural experiment: variation in ...

In order to make smart decisions at work, we need data. Where that data comes from and how we analyze it depends on a lot of factors — for example, what we’re trying to do with the results, how ...

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 ...