Key points are not available for this paper at this time.
Past research examining group cohesion and performance was reviewed using metaanalysis. The results indicated a positive relationship with the average cohesive group performing 18 percentile points above the average noncohesive group. Given the nature of the studies used here (all studies had been previously published), caution is suggested in generalizing these results to "real" work groups.
Evans et al. (Wed,) studied this question.