وظیفه و رفتار رهبری فردی و عملکرد تیم: متا آنالیز

This paper reports the results of a meta-analytic review of the relationship between person and task-focused leader behaviors, on the one hand, and team performance, on the other hand. The results, based on 89 independent samples, show a moderate positive (ρ = 0.33) association between both types of leadership behaviors and subjective team performance. For objective team performance, the effect sizes are smaller, yet positive (ρ = 0.19 for task-focused leadership behaviors and ρ = 0.18 for person-focused leadership behaviors). Furthermore, with respect to the methodological moderators, the analyses show that the relationships were stronger when leadership behaviors were rated by the leaders themselves, rather than by others, and the association was stronger when the correlations were estimated at the individual level, as opposed to the team level of analysis. Concerning conceptual moderators, team type was identified as a significant moderator, and correlations between a person-focused leadership behavior and team performance were stronger for service and project teams than for action/performing teams. Task interdependence was another moderator tested in our meta-analysis, yet our results show no clear moderating effect of task interdependence on the relationship between leadership behavior and team performance.