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Intention-to-treat — USMLE Step 3 MCQ

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ModeratePreventive Medicine, Epidemiology, BiostatisticsIntention-to-treatUSMLE Step 3

A randomized trial of a diabetes app compares app access with usual care. Some participants assigned to the app stop using it and some usual-care participants download another app. Investigators want to preserve randomization. Which of the following is the most appropriate quality improvement measure?

Educational content. Not a substitute for clinical judgement or local policy.

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Correct answer: E — Analyze participants in their originally assigned groups

Intention-to-treat keeps participants in randomized groups, preserving comparability.

Reference: Current US clinical practice standards and USMLE Step 3 content outline, https://www.usmle.org/exam-resources/step-3-materials