A study of the BJ’s Wholesale Club employee wellness program attracted a lot of attention in the media, but the most important facts about the study were overlooked.

“The model aims to answer the question: what is the effect of offering an individual the opportunity to participate in a wellness program?”

— From the study’s supplement (eMethods 3. Statistical Analysis)

Facty Fact 1: Worksites, Not Workers, Were Randomized

The BJ’s study was not primarily an evaluation of participation outcomes: Continue reading »