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Educational diversity and group effectiveness: a social network perspective

Purpose – This paper sets out to test the mediating role of internal network density and external network range in the relationship between educational diversity (i.e. separation and variety) and group effectiveness.Design/methodology/approach – The authors surveyed 267 employees in 54 organizational groups.Findings – The study's results show that educational separation has a U‐shaped relationship with the advice network density. Moreover, educational variety moderates the relation of educational separation with external network range in such a way that for groups with high educational variety, the relationship between educational separation and external network range is U‐shaped, while for groups with low educational variety the relationship has an inverted U shape. The results also show that internal network density and external network range mediate the relationship between educational diversity and group effectiveness.Research limitations/implications – The paper extends the literature on group divers...