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Step 1 NBME 15: what's on it and how hard it is

NBME 15 has 123 questions in our copy. The average question is 67 words long and 72% take two or more steps to answer. It leans most on blood and immune system, GI and liver and heart and vessels.

Difficulty (0–100)
48
Average question
67 words
Take 2+ steps
72%
Have an image
15%

When to take it

Extra practice early on. It is an older form: shorter questions and more straight recall than today's exam, so don't read much into the score.

Students say it feels about as hard as it is.

Our original practice exams

Systems it tests most

Share of the questions in each system.

  • Blood and immune system15%
  • GI and liver10%
  • Heart and vessels10%
  • Brain and nerves9%

The full breakdown

Every system and subject, what the questions ask, and what changed from older forms.

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