Relationship between performance on part I of the American Board of Orthopaedic Surgery Certifying Examination and Scores on USMLE Steps 1 and 2.
BACKGROUND
This study investigated the strength of the relationship between performance on Part I of the American Board of Orthopaedic Surgery (ABOS) Certifying Examination and scores on United States Medical Licensing Examination (USMLE) Steps 1 and 2.


METHODS
USMLE Step 1 and Step 2 scores on first attempt were matched with ABOS Part I results for U.S./Canadian graduates taking Part I for the first time between 2002 and 2006. Linear and logistic regression analyses investigated the relationship between ABOS Part I performance and scores on USMLE Step 1 and 2.


RESULTS
Step 1 and Step 2 individually each explained 29% of the variation in Part I scores; using both scores increased this percentage to 34%. Results of logistic regression analyses showed a similar, moderately strong relationship with Part I pass/fail outcomes: Examinees with low scores on Steps 1 and 2 were at substantially greater risk for failing Part I.


CONCLUSIONS
There is continuing empirical support for use of Step 1 and Step 2 scores in selection of residents to interview for orthopedics residency positions.
Swanson
David B
DB
National Board of Medical Examiners, 3750 Market Street, Philadelphia, PA 19104, USA. dswanson@nbme.org
Sawhill
Amy
A
Holtzman
Kathleen Z
KZ
Bucak
S Deniz
SD
Morrison
Carol
C
Hurwitz
Shepard
S
DeRosa
G Paul
GP
D002568:Certification; D002983:Clinical Competence / Q000592:standards*; D004521:Educational Measurement; D008007:Licensure, Medical; D009985:Orthopedics; D014481:United States