A Concordance Study of COMLEX-USA and USMLE Scores

Author:

Barnum Stuart12ORCID,Craig Brandon13,Wang Xaolin14,Sandella Jeanne15,Tsai Tsung-Hsun16,Boulet John17,Wang Yi18

Affiliation:

1. All authors are with the National Board of Osteopathic Medical Examiners

2. Stuart Barnum, MA, MS, is a Psychometrician

3. Brandon Craig, PhD, is a Psychometrician

4. Xaolin Wang, PhD, is a Psychometrician II

5. Jeanne Sandella, DO, is Associate Vice President for Research and Communications

6. Tsung-Hsun Tsai, PhD, is Associate Vice President for Assessment Services & Research

7. John Boulet, PhD, is Senior Research Consultant

8. Yi Wang, MS, is Lead Data Analyst

Abstract

ABSTRACT Background Under the single GME accreditation system, residency programs receive applicants from MD- and DO-granting medical schools, each of which have their own set of licensing examinations, making concordance studies increasingly relevant. Previous studies comparing Comprehensive Osteopathic Medical Licensing Examination of the United States (COMLEX-USA) and United States Medical Licensing Examination (USMLE) scores have been limited in sample size and examinee composition and have yielded comparisons that may not be generalizable across all applicants. Some osteopathic medical students take USMLE in addition to COMLEX-USA, often at considerable cost and effort, with the aim of making themselves more desirable to potential residency programs. Having more reliable comparisons of COMLEX-USA and USMLE scores would allow program directors to better estimate a score on the alternate examination. Objective To derive an accurate concordance between COMLEX-USA and USMLE scores, based on a large sample of osteopathic students who took both examinations. Methods Five colleges of osteopathic medicine, representing various regions of the United States, participated in this study. The data included demographics and COMLEX-USA and USMLE scores from September 2015 through August 2020 for students who took both examinations. We derived the concordance between COMLEX-USA and USMLE scores using equipercentile matching. Results Comparisons of demographic characteristics showed only minor differences between the sample and the overall population for COMLEX-USA takers, although scores for the study sample were, on average, greater. Conclusions A strong association exists between the scores on the COMLEX-USA and USMLE examinations, allowing prediction of performance on USMLE from COMLEX-USA.

Publisher

Journal of Graduate Medical Education

Subject

General Medicine

Reference28 articles.

1. Buser BR, Swartwout J, Lischka T, Biszewski M. Single Accreditation System for graduate medical education: transition update. J Am Osteopath Assoc. 2019; 119(4): 257– 262. doi:10.7556/jaoa.2019.043

2. National Board of Osteopathic Medical Examiners. https://www.nbome.org/. Accessed November 11, 2021.

3. United States Medical Licensing Examination. 2020 Performance Data. https://www.usmle.org/usmle-updates-research/performance-data. Accessed November 11, 2021.

4. National Resident Matching Program. Results of the 2020 NRMP Program Director Survey. https://mk0nrmp3oyqui6wqfm.kinstacdn.com/wp-content/uploads/2020/08/2020-PD-Survey.pdf. Accessed November 11,2021.

5. Coalition for Physcian Accountability. Recommendations for Comprehensive Improvement of the UME-GME Transition. https://physicianaccountability.org/wp-content/uploads/2021/08/UGRC-Coalition-Report-FINAL.pdf . Accessed November 11,2021.

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