Background: Despite extensive research in simulation, few studies explored the impact of pre-brief on students' learning during simulation-based experiences. This scoping review is the first to present available evidence related to the pre-brief component of simulation-based experiences and its impact on achieving learning outcomes. Method: PubMed, CINAHL, and MEDLINE databases were searched for articles focusing on pre-brief with no date or geographic restrictions. Fifteen articles met the inclusion criteria and were integrated in the scoping review. Results: Simulation experiences following standardized practices of pre-briefing, scenario or case, and debriefing, achieved several educational and professional outcome measures. While studies that isolated the pre-brief effects were limited, findings indicate a significant improvement in outcome measures related to psychological safety and confidence levels. Pre-brief was also associated with reducing learners' stress, optimizing skills and knowledge, and facilitating a reflective and constructive debriefing. Conclusion:It is essential that simulation facilitators implement pre-brief consistently to create psycholgocial safety for learners, using a standardized approach. More research is required to determine degree to which the pre-brief contributes to simulation outcomes.

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