CMS forms average vs real Step 2 CK scores

Based on 717 real score reports. CMS forms average correlates with the final score (r = 0.58), although individual results vary widely.

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. Correlation with the final score: r = 0.58 · Reports: 717.

How CMS forms fit into Step 2 prep

These reports can measure score prediction, but they cannot measure how much students learned from doing the forms. US MD and DO reports that included a CMS average showed a mean practice-score change of +21.6 points; reports without a CMS average or mention showed +21.0 points (n = 177 vs 342). 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. That does not make the forms less useful for studying. Many students use CMS forms to practice NBME test-writing logic, including which clinical details change the answer and why distractors are wrong. 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 265 or higher averaged about 84%. 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 = 0.58), although practice exams predict better. The main predictor can include this percentage alongside NBME or UWSA scores.

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