CMS forms average vs real Step 2 CK scores
Based on 632 real score reports. CMS forms average correlates with the final score (r = 0.59), although individual results vary widely. Students who went on to score 250+ averaged about 82%; those who scored 260+ averaged about 83%.
The lookup shows a group average. The main predictor uses all of your assessments and their timing.
Each dot is one real report. Hover or tap a dot to see that person's full test list. r = 0.59, n = 632.
| CMS forms average | Average Step 2 | Median | Reports |
|---|---|---|---|
| 65–69% | 244 | 245 | 31 |
| 70–74% | 248 | 246 | 60 |
| 75–79% | 254 | 254 | 131 |
| 80%+ | 262 | 263 | 407 |
How CMS forms fit into Step 2 prep
This dataset measures score prediction more reliably than it measures the learning value of CMS forms. US MD and DO reports that included a CMS average showed a mean practice-score change of +21.1 points; reports without a CMS average or mention showed +21.1 points (n = 112 vs 179). Non-reporting does not establish that CMS forms were not used, so this comparison cannot isolate their learning effect. CMS average adds little to a prediction once NBME scores are known. The forms can still support shelf review and practice with NBME-style clinical reasoning, including how clinical details change the answer and how distractors are constructed. See the score-improvement analysis.
Common questions
What CMS forms average do you need for a 250 on Step 2?
Students who scored 250 or higher averaged about 82%, and those at 260 or higher averaged about 83%. Individual results vary widely, so these averages should not be used as cutoffs.
Is CMS forms average a good predictor of the real score?
It correlates with the real score (r = 0.59), although practice exams predict better. The main predictor can include this percentage alongside NBME or UWSA scores.
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Charts & guides
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