1. Which USMLE Step 1 question bank is most strongly correlated with actual exam performance?
Explanation. UWorld is consistently cited as having the strongest correlation with actual USMLE Step 1 performance in student outcome data. Completing UWorld at least once is one of the most robust predictors of passing.
2. A student does 200 Amboss questions and scores 55%. They are worried about failing Step 1. The most appropriate interpretation is:
Explanation. Amboss questions are systematically harder than the actual USMLE. A 55% on Amboss does not directly translate to Step 1 performance. Use NBME forms and UWSAs for score prediction.
Frequently asked questions
Should you do UWorld or Amboss first?
Most students use UWorld as their primary qbank, starting in dedicated studying. Amboss works well as a second pass or concurrent resource — particularly its library function for deep dives during early years. If budget allows only one, choose UWorld.
How predictive is the UWorld self-assessment for Step 1 scores?
The UWorld self-assessment (UWSA1 and UWSA2) is among the most predictive of the available practice tests. UWSA2 tends to be more predictive than UWSA1. As a general heuristic, UWSA2 score is often within 5–10 points of actual Step 1 performance, though individual variance is significant. NBMEs and Free 120 are used alongside UWSAs for final prediction.
Is Amboss worth the cost?
Amboss is valuable if you engage the library, not just the questions. Students who use Amboss purely as a question bank often find the difficulty discouraging without proportional benefit. The library's hyperlinked, concise summaries are genuinely excellent for rapid concept lookup during dedicated studying. If budget is a constraint, UWorld plus free resources (First Aid, Sketchy, Pathoma) provides excellent coverage.
Apply what you know
Reinforce with spaced practice
Progress Note adapts to your knowledge gaps — so you spend time on what actually moves the needle.