Introduction: The United States Medical Licensing Examination (USMLE) Step 1 recently shifted from a three-digit scoring format to a pass/fail scoring rubric. Lake Erie College of Osteopathic Medicine (LECOM) is among a number of osteopathic medical schools that traditionally included passing Step 1 as a graduation requirement. However, LECOM removed this requirement following the change in scoring format. National Board of Medical Examiners (NBME) subject examinations have a significant impact on the clerkship grades of third-year medical students. Therefore, our pilot study compared NBME subject examination scores among third-year LECOM medical students that did and did not take and pass Step 1. We anticipate that both high pre-clinical grade point average (GPA) and having passed Step 1 will be associated with higher subject exam scores, but passing Step 1 will have a relationship with higher subject exam scores that is independent of pre-clinical GPA.
Methods: Using voluntary response sampling, 201 osteopathic medical students from LECOM completed an online survey through Google Forms regarding their pre-clinical GPA, subject exam scores, whether they took and passed USMLE Step 1, and their study resources used throughout clerkships. Results: There was a positive correlation (p < 0.05) found between pre-clinical GPA and exam scores across all subjects among students that took Step 1. There was no relationship between pre-clinical GPA and exam scores across all subjects among students that did not take Step 1 (p > 0.05). Students that took Step 1 had a higher pre-clinical GPA than those that did not. Students that took and passed Step 1 scored higher on subject exams. Fifty-nine percent of respondents indicated they would have studied more for Step 1 if these exams were scored on the three-digit format, while zero respondents indicated they would have studied less.
Conclusion: Although higher pre-clinical GPA and taking Step 1 were associated with higher scores on subject exams, taking Step 1 appears to have an independent influence on subject exams because there was no relationship found between pre-clinical GPA and subject exam scores among students that did not take Step 1. Therefore, there may be features related to preparing for this exam that better equip osteopathic medical students to perform well on subject exams.
Keywords: comlex level 1 pass/fail; nbme subject exam; osteopathic medical education; pre-clinical gpa; usmle step 1 pass/fail.
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