# The Full-Length Step 1 Assessments

> Two 14-block, 280-question full-day Step 1 simulations, how they differ from NBME forms, and how to use the report.

URL: https://usmlevault.com/blog/assessment.html
Canonical: https://usmlevault.com/blog/assessment.html

## Summary

USMLE Vault offers two full-length Step 1 assessments built as complete exam-day simulations: 14 blocks of 20 questions each, 280 questions total, 30 minutes per block. Assessment 2 is free for every signed-in student. The stems are written at real-exam length and tuned harder than NBME forms so exam day feels easier by comparison. Each assessment returns a performance report with an overall raw percentage, a system-by-system breakdown, and a calibrated verdict on pass likelihood — explicitly without a fabricated three-digit score prediction.

## Key facts

- Format: 14 blocks, 20 questions per block, 280 questions total, 30 minutes per block
- Assessment 2 is free for every signed-in student; Assessment 1 is the second simulation
- Question stems are written at real-exam length, noticeably longer than NBME stems, with difficulty tuned above NBME forms
- The report gives an overall raw percentage, a system-by-system breakdown, and an honest pass-likelihood verdict — no 3-digit score prediction
- Recommended use: take the free Assessment 2 first under exam conditions, rebuild the two weakest systems, then run Assessment 1 in the final stretch

## Covers

full length step 1 practice exam, free step 1 practice test, 280 question step 1 simulation, step 1 exam day stamina practice, usmle vault assessment, harder than nbme practice exam

## Source

USMLE Vault — https://usmlevault.com
Author: Dr. Marish Asudani

Updated: 2026-08-26