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?expand_more
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?expand_more
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?expand_more
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.