Dr. Jay Bhattacharya objected to the study’s methodology, saying it gave an inaccurate picture of the vaccine’s benefits.

The acting CDC director cited concerns with the methodology, but the design has long been used to test vaccine effectiveness.

As an epidemiologist and physician, I’ve long been concerned about how health interventions for marginalized communities are evaluated. A new study explores that concern and offers some solutions for ...

Companies often talk about employee effectiveness and efficiency when brainstorming ways to improve business. While they sound similar, effectiveness means something entirely different than efficiency ...

This post is part of a Health Affairs Blog short series, “Enhancing Value By Evaluating Health Care Services.” The series discusses ways to extend the use of tools for clinical and economic evaluation ...

There is a lot of room for improvement in the conversation about marketing effectiveness. Too often, when pressed by finance colleagues, marketers default to a narrow definition of effectiveness – ...