Medical students as teachers: impact of peer-led teaching sessions on NBME exam performance

PLTS effectively enhance foundational science understanding but may be less impactful for advanced topics. The diminishing effect may result from increased use of diverse study resources and adaptation to medical school. Future research should explore long-term benefits, optimal implementation strategies, and the impact of instructor quality and engagement. Therefore, the overall conclusion is that PLTS positively influence NBME-style exam performance in early medical education, but benefits decrease over time.