A Comparison of Individual and Team Skill Acquisition, Retention (Decay), and Reacquisition Using a Synthetic Task Environment

Skill decay is the decrement in performance on acquired knowledge and skills after a period of nonuse. Although there is a fair amount of work on individual skill decay, the literature on team-level skill decay is very limited. Thus, using a synthetic task environment, the objective of this study was to compare individual and team performance in terms of skill acquisition, retention (decay), and reacquisition. Eighty-one individuals in 27 three-person teams were trained to perform a complex computer-based simulation. The initial acquisition phase comprised a 2-day, 5-hour training protocol. After an average 73.33-day nonuse interval (SD = 30.18), participants returned for a 2-hour reacquisition session. Participants completed the performance task as both individuals and teams. The results indicated that, compared to individual performance, team performance improved faster during the skill acquisition phase. However, unlike individual performance, the amount of decay for team performance was dependent on whether the first retention performance session for team members was performed as individuals—where trainees had the opportunity to perform all components of the task—or as a team, with the latter resulting in the most decay. By extension, these results highlight the impact of a relatively brief individual post-retention (nonuse) interval training to mitigate team skill decay. In short, our results indicate that a little individual practice can go a long way toward maintaining team retention performance, but in contrast, a little team practice does not do the same for individual retention performance.