Tools for measuring outcomes of interprofessional education (IPE) have been criticized as having weak evidence for validity. The purpose of this study was to compare previous validity evidence for three commonly used self-report tools with data from 684 learners at four U.S. universities to better understand how these measures perform across contexts and learner levels. The research team consisted of faculty representing athletic training, dentistry, dental hygiene, dietetics, medicine, nursing, physical therapy, and public health, who came together to learn about, from, and with each other…