Confidence in performing normal vaginal delivery in the obstetrics clerkship: a randomized trial of two simulators.

Objective: To compare clerkship medical students' confidence in performing a simulated normal vaginal delivery (NVD) after participating in a simulation training session using two different models.

Methods: Medical students were randomized to participate in a simulated NVD session using either an obstetrics mannequin or a birthing pelvis model. Questionnaires were used to assess confidence and evaluate the simulation before and immediately after the session and on the last day of the obstetrics clerkship rotation.