The USMLE program began the process of eliminating the reporting of results on the 2-digit score scale to parties other than the examinee and any state licensing authority to which the examinee sends results on July 1, 2011. The USMLE program extended this change in reporting to include ALL score recipients (e.g., examinees, state medical boards), eliminating all calculating and reporting of the 2-digit score effective April 1, 2013.
For example, John Doe requested a transcript on March 1, 2013. The transcript reported a 2-digit and 3-digit score for his Step 1 and Step 2 CK outcomes. If John Doe requests another transcript on April 2, 2013, the transcript will report only a 3-digit score for his Step 1 and Step 2 CK outcomes.
This change pertains to the Step 1, Step 2 CK, and Step 3 examinations only; Step 2 CS will continue to be reported as pass or fail with no numeric score.
Background
Beginning with its introduction in the 1990s, the USMLE program has reported two numeric scores for the Step 1, Step 2 CK, and Step 3 examinations, one on a 3-digit scale and one on a 2-digit scale. The 3-digit score scale has always been considered the primary reporting scale; it is developed in a manner that allows reasonable comparisons across time.
The 2-digit scale was intended to meet statutory requirements of some state medical boards, which require a score scale that has 75 as the minimum passing score. The process used to convert 3-digit scores to 2-digit scores was designed in such a way that the 3-digit minimum passing score in effect when the examinee tested was always associated with a 2-digit score of 75. It is important to note that the 2-digit score was not a percentile.
The USMLE program requires its governing committees to reevaluate the minimum passing score for each Step every three to four years. This process has, at times, resulted in changes in the minimum passing score, expressed on the 3-digit scale, and an accompanying change in the score conversion process, to ensure that a 2-digit score of 75 is associated with the new minimum passing requirement.
A by-product of the adjustment of the score conversion system over time was a shift in the relationship between the two score scales. This shift had no impact for USMLE score users who used the 3-digit scoring scale or for those who used the 2-digit scale with a primary interest in whether the examinee had a passing 2-digit score of at least 75.
However, the shifting relationship between the two scores scales created challenges in interpretation for score users who focused on 2-digit scores for purposes of comparing USMLE scores that span several years.
To eliminate the misuse of and confusion surrounding the 2-digit scale, the USMLE Composite Committee, the governing body of the USMLE program, directed staff to discontinue reporting of the 2-digit score.