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found a low correlation between members' rankings of each other on personal liking and their rankings based on contributions of the best ideas. He also found very little relationship between popularity and perceived leadership (asked at the fourth meetings only). He further found that congruence of rankings of liking and rankings of contributions of the best ideas decreased significantly from the first to the fourth meetings, thus contradicting the findings of Gibb and Jennings. Slater interprets this change as indicating an increasing specialization of the popularity and leadership roles over time.28 The hypotheses presented in this paper offer a possible explanation for these contradictory findings, by using cohesiveness as the intervening variable. We should hypothesize that through time leadership and popularity roles may either merge or differentiate, depending on whether cohesiveness is increasing or decreasing, with specialization of these roles a function of low cohesion. SUMMARY
Sewell et al. (Fri,) studied this question.