The claim that appropriate after-event review might decrease the relative advantage of drawing lessons from failures over drawing lessons from successes was examined in a quasi-field experiment. The results show that performance of soldiers doing successive navigation exercises improved significantly when they were debriefed on their failures and successes after each training day, compared with others who reviewed their failed events only. The findings also show that, before the manipulation, in both groups, learners' mental models of failed events were richer in constructs and links than were their mental models of successful events. This gap closed gradually in subsequent measurements.
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