How Predictive Is NBME 5 for Step 3?

NBME 5 has been submitted to Predict My Step Score 1,511 times and tracked against the real Step 3 results students went on to report. In that data, NBME 5 showed low predictive power: only a loose link to the real score.

What is NBME 5?

The NBME Comprehensive Clinical Medicine Self-Assessments (CCMSA) — the numbered "NBME forms" for Step 3 — are written by the National Board of Medical Examiners. Unlike the Step 2 forms they report on a 10–800 scale (mean 500), not the 3-digit scale, and the NBME itself says they are not designed to predict Step 3 performance. That is why this page shows no over/under-prediction figure for them — only how well the score tracked real results in our data.

What is a good NBME 5 score?

In our data, NBME 5 scores ranged from 195 to 620. The link is real but loose: two students with the same NBME 5 score can finish well apart on the real exam. A "good" NBME 5 score is one that puts your likely outcome comfortably above the score you need — run it through the predictor to see where you stand.

When should you take NBME 5?

NBME forms work best as spaced checkpoints through dedicated study, roughly one every one to two weeks, saving the newest forms for the final stretch since they match the current exam most closely.

Does it matter when you take NBME 5?

Timing matters twice over. First, a score from six weeks out is a snapshot of a student who then kept studying, so early tests tend to sit below the real result — much of what looks like "underprediction" is simply improvement after the test. Second, our predictor does not treat every score you enter equally: each one is weighted by the exam's R² and by how recently you took it, with a recency factor that decays exponentially from your most recent test back to your oldest, and your three most recent scores drive the final adjustment. Enter the days-before-exam for each test honestly — it changes the answer.

Enter your NBME 5 score

NBME 5 score

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Takes you to the predictor with NBME 5 already filled in — add your other practice exams there for the full prediction.

How NBME 5 compares

Wondering whether to take NBME 5 next? See which practice tests are most predictive.

NBME 5 vs the other NBME forms

NBME 5 is one of 3 NBME forms in our Step 3 data, and they are not interchangeable: predictive power differs from form to form. The others — NBME 6, NBME 7 — each have their own page, and the full side-by-side ranking is available to premium users. How predictive is NBME 6? · How predictive is NBME 7?

Frequently asked

Is NBME 5 accurate?

NBME 5 showed low predictive power in our data: only a loose link to the real score. But no practice test is "accurate" on its own — most are taken while you are still improving, so the number you see is rarely the number you get. Combining your scores, weighted by each exam's track record and timing, gives a sharper answer than any single test. Predict your Step 3 score →

Does NBME 5 overpredict or underpredict Step 3?

NBME 5 is reported as a percentage rather than a 3-digit score, so there is no direct over/under-prediction figure. Its overall predictive power in our data is low.

Is NBME 5 or UWSA 2 more predictive?

UWSA 2 is more predictive in our data. The exact gap is part of the full ranking, which is available to premium users.

Where does this data come from?

1,511 NBME 5 scores have been submitted to Predict My Step Score so far. Whenever a student also reports their actual Step 3 result, the pair goes into the model behind this page; it was last refit on 2026-05-14.

Can't I just ask ChatGPT how predictive NBME 5 is?

Not reliably. A prediction is only as good as the paired data behind it: real NBME 5 scores matched to the real Step 3 result those same students went on to get. General-purpose AI models are trained on forum posts and articles, not on verified outcomes, so what you get back is a summary of anecdotes rather than a calibrated estimate. The numbers on this page come from students who reported both. Read more →

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Data refreshed 2026-05-14.

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