Racial/Ethnic Group Trajectory Differences in Exam Performance Among US Family Medicine Residents.

Background And Objectives: Racial/ethnic score disparities on standardized tests are well documented. Such differences on the American Board of Family Medicine (ABFM) certification examination have not been previously reported. If such differences exist, it could be due to differences in knowledge at the beginning of residency or due to variations in the rate of knowledge acquisition during residency. Our objective was to examine the residents' mean initial scores and score trajectories using the In-Training Examination (ITE) and certification examination.

Methods: A total of 17,275 certification candidates from 2014 to 2019 were included in this study. Annual ITE scores and certification examination scores are reported on the same scale and serve as the outcome. We conducted multilevel longitudinal regression to determine initial knowledge and growth in knowledge acquisition during residency by race/ethnicity categories.

Results: The mean postgraduate year 1 (PGY-1) ITE score was 393.3, with minority residents scoring 16.2 to 36.0 points lower compared to White residents. The mean increase per year in exam performance from PGY-1 ITE to the certification exam was 39.9 points (95% CI, 38.7, 41.1) with additional change among race/ethnicity categories per year of -3.2 to 1.9 points.

Conclusions: This study found that there were initial score disparities across race/ethnicity groups in PGY-1, and these disparities continued at the same rate throughout residency training, suggesting equality in acquisition of knowledge during family medicine residency training but with a persistent gap throughout training.