This study extends previous work reviewing the cohesion-performance relationship by using meta-analytic techniques to assess the effects of level of analysis and task interdependence on the cohesion-performance relationship. A total of 51 effect sizesfmrom 46 empirical studies were obtainedfor the meta-analytic integration. Results suggest that level of analysis and task interdependence moderate the cohesion-performance relationship. Implications of the findingsforfuture research on group cohesion and performance are discussed