A 2015 report from the Institute of Medicine, "Improving Diagnosis in Health Care," identified existing gaps in our health care system's knowledge when it comes to preventing and mitigating diagnostic error as well as improving the diagnostic process.  Resultingly, the IOM committee concluded that most individuals will experience at least one diagnostic error in their lifetime, at times with devastating consequences. Drs. Elizabeth McGlynn, PhD, Kathryn McDonald, MM, and Christine Cassel, MD, call for dedicated research of diagnostic errors with collaboration among stakeholders across all types of health care settings as well as measurement science methodologies in order to address this issue. Read their report, "Measurement in Essential for Improving Diagnosis and Reducing Diagnostic Error," here.