Spaced Repetition in Medical Education: What It Can Support
Spaced repetition can make recall practice easier to organize. It is not a substitute for clinical reasoning, question review, sleep, or a personal readiness decision.
Roediger and Karpicke compared retrieval practice with rereading prose passages in a laboratory study and found an advantage for retrieval on delayed retention. Karpicke and Roediger similarly studied vocabulary retrieval after an initially correct response. These experiments support using active recall, but they do not prescribe a Step 1 card count or schedule.
What medical-student studies show
Gilbert et al. observed an association between Anki use and course/CBSE performance in 130 students. Because students selected their own study method, confounding and selection can contribute; the result is not a causal Step 1 promise or proof of lasting performance. Mehta et al. examined 25 first-year students and found descriptive differences in review counts (565 versus 389) among groups on an NBME Comprehensive Achievement Subject Exam. That was not Step 1, and it does not create a daily quota, retention target, or seven-day rule.
Use those findings as permission to experiment, not as a demand to copy another student’s dashboard.
A practical way to use cards
Make or select cards for facts you repeatedly miss. Answer before revealing the back, grade honestly, and suspend or rewrite cards that are vague. Use question blocks and explanations to practice applying facts in clinical context. Review volume should fit your available time and health; a growing backlog is information that the system needs simplification.
For a schedule that leaves room for review and questions, see building a flexible Step 1 schedule.