Improving physicians’ use of laboratory tests is not usually a problem of motivation. They’re already motivated to deliver high-quality care to their patients. More often, it’s about choice architecture, i.e., making sure that correct choices are easier to make than incorrect ones. In this discussion, Dr. Valerie Vaughn explains the science behind nudging and choice architecture. She also explains how her own research convinced her that improving the use of diagnostic tests is often the key t...