A recent social media post by author Charles Murray has drawn attention to long-standing disparities in medical education, particularly concerning Medical College Admission Test (MCAT) scores and physician competence. Murray's tweet asserted a substantial correlation between MCAT scores and medical school performance, and subsequently between medical school performance and physician competence. He further claimed that Black individuals' MCAT scores have been significantly lower than White/Asian scores for decades, and that Black physicians' performance on competence measures has also been lower, deeming the latter "logically inevitable."
Studies from the Association of American Medical Colleges (AAMC) and other research consistently indicate a medium to large correlation between MCAT scores and academic performance in medical school, especially in preclerkship courses and on standardized licensing exams like USMLE Step 1 and Step 2 Clinical Knowledge. This predictive value is often enhanced when MCAT scores are considered alongside undergraduate GPAs. However, some research suggests that the MCAT's predictive power for clinical performance during residency, which relies on direct observation, is less pronounced.
The relationship between medical school performance and overall physician competence is more complex. While medical licensing examinations, such as the Canadian MCCQE Part I, have shown some correlation with future physician performance metrics like rates of non-dismissed complaints, comprehensive clinical competence involves a broader range of attributes. Some studies suggest that traditional academic metrics may not fully capture the diverse skills required for effective clinical practice.
Regarding racial disparities, AAMC data from various application cycles (e.g., 2021-2022, 2023-2024, 2025-2026) consistently show that Black matriculants to U.S. medical schools have lower average MCAT scores and GPAs compared to their White and Asian counterparts. This persistent gap is acknowledged within medical education circles, with some research attributing these differences to structural racism and disparities in educational opportunities and test preparation resources prior to medical school.
However, direct evidence to support Murray's assertion of "lower mean performance as physicians on various measures of competence" for Black doctors as "empirically undeniable" or "logically inevitable" is not consistently found in the reviewed literature. In fact, one study on patient perceptions of anesthesiologist competence found that patients, particularly White respondents, ranked Black physicians more highly on confidence, intelligence, and leadership, though the authors noted potential social desirability bias. Other research emphasizes the positive impact of a diverse physician workforce on patient trust and care for underserved populations, suggesting benefits that extend beyond traditional competence metrics.
The ongoing discussion highlights the importance of holistic review processes in medical school admissions, which consider a broader range of applicant attributes beyond test scores, aiming to foster a diverse healthcare workforce capable of providing culturally responsive care. This approach acknowledges that a single standardized test may not fully predict a physician's eventual success or impact on patient outcomes.
