This document describes a proposed study to compare the effectiveness of interleaved versus progressive simulation training scenarios on the long-term retention of pediatric resuscitation skills among nursing staff. The study would involve two cohorts of pediatric nurse teams who receive rapid cycle deliberate practice simulation training, with one cohort receiving interleaved scenarios and the other receiving a single progressive scenario. The primary outcome would be the percentage of team participants who can demonstrate retention of three resuscitation skill bundles at 100% after 12 months. Key steps include receiving feedback on the study design, submitting for IRB approval within two months, and goals to accomplish at the INSPIRE conference.