Instructor feedback versus no instructor feedback on performance in a laparoscopic virtual reality simulator: a randomised trial. Ann Surg 2013; 257: 839–844.

Published: 10th January 2014

Authors: Strandbygaard J, Bjerrum F, Maagaard M, Winkel P, Larsen CR, Ringsted C et al. et al.


Ninety-nine medical students proficient in complex tasks on virtual reality were randomly allocated instructor feedback. Feedback improved training efficiency: time (162 vs 342 min, P<0.0005) and repetitions (29 vs 65, P<0.005) to achieve proficiency.

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