Abstract
Undergraduate and graduate medical education have long embraced uniqueness and variability in curricular and assessment approaches. Some of this variability is justified (warranted or necessary variation), but a substantial portion represents unwarranted variation. A primary tenet of outcomes-based medical education is ensuring that all learners acquire essential competencies to be publicly accountable to meet societal needs. Unwarranted variation in curricular and assessment practices contributes to suboptimal and variable educational outcomes and, by extension, risks graduates delivering suboptimal health care quality. Medical education can use lessons from the decades of study on unwarranted variation in health care as part of efforts to continuously improve the quality of training programs. To accomplish this, medical educators will first need to recognize the difference between warranted and unwarranted variation in both clinical care and educational practices. Addressing unwarranted variation will require cooperation and collaboration between multiple levels of the health care and educational systems using a quality improvement mindset. These efforts at improvement should acknowledge that some aspects of variability are not scientifically informed and do not support desired outcomes or societal needs. This perspective examines the correlates of unwarranted variation of clinical care in medical education and the need to address the interdependency of unwarranted variation occurring between clinical and educational practices. The authors explore the challenges of variation across multiple levels: community, institution, program, and individual faculty members. The article concludes with recommendations to improve medical education by embracing the principles of continuous quality improvement to reduce the harmful effect of unwarranted variation.
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