earticle

영어

The purpose of this study is to examine the effects of shared leadership on team efficacy and team commitment. In addition, we attempt to verify the mediating effects of task coordinations and workload sharing on the relationships between shared leadership and team efficacy and team commitment. To test the proposed hypotheses in our study, we collected data via a survey with a sample of 77 university student teams, comprising 339 respondents (on average 4.4 per team). Shared leadership was measured on the team member survey with 3 items used by Kent and Moss (1990). Response were provided on a 7-point Likert scale. Team efficacy was measured by scale from Riggs and Knight (1994) on a 7-point 3-item Likert scale. Team commitment were measured by scale from Van der Vegt, Emans, and Van De Viliert (2000) on a 7-point 4-item Likert scale. The level of analysis in this study is the team. To justify the aggregation of the responses of multiple respondents for obtaining measures at the team level, we used inter-rater agreement indices, rwg (James, Demaree, and Wolfe, 1984). In all cases, the rwg score provided support for combining team members’ perceptions to produce aggregated scores for the measures. The major findings are as follows: First, shared leadership were positively associated with team efficacy and team commitment. The findings suggest that organizations should help develop strong shared leadership patterns within their teams to bolster effectiveness. Organizations can promote shared leadership by setting expectations and encouraging members when teams initially form to view themselves and their fellow team members as leaders and to engage in shred, mutual leadership. Second, task coordinations and workload sharing have turned out to have a partial mediation effect on the relationship between shared leadership and team efficacy. as well as the relationship between shared leadership and team commitment. That is, this result indicated that shared leadership indirectly effects on team efficacy and team commitment through task coordinations and workload sharing. Mangers should therefore ensure that each team has a clear and shared sense of direction, prepares working plans, prioritize and allocate team tasks and promote and establish norms of participations and workload sharing. Our study makes key contribution to the literature on shared leadership. The findings extend previous research suggesting positive effects of shared leadership on team efficacy and team commitment using a network-based measure of shared leadership that better captures the patterns of mutual influence inherent in the construct. The findings of the mediation analyses are the primary contribution of this study since little research examined a mediation model. Specifically, the mediation analyses showed that even though the mediating effect of task coordinations and workload sharing on the relationship between shared leadership and team efficacy and team commitment. shared leadership still had some direct effects on outcome variables, suggesting the influence process of shared leadership on team outcomes could be more complicated than we originally proposed. This issue needs to be further clarified or even reconsidered. Given the small number of samples from the student teams, this study constitutes an exploratory attempt in nature. Caution must be exercised in attempting to interpret findings and to generalize the recommendations. The results proposed in this study must be validated by further research in diverse research settings. Causality could not be claimed due to the cross-sectional nature of the data. Longitudinal and experimental designs are needed to settle the dynamic relationships between shared leadership and team efficacy and team commitment. Several studies have called for more research on potential conditions such as task type that influenced link between shared leadership and team efficacy and team commitment. Such contextual variables are not fully measured in this study but could be included in future research.

한국어

지금까지의 팀 리더십에 대한 연구는 한 개인의 리더십에 초점을 맞춰 개인의 특성 및 행동을 강조해 왔다(Bass, 1990). 리더 중심적인 관점은 리더십과 팀 성과 사이의 관계에 있어 많은 시사점을 제공하였지만(Guzzo and Dickson, 1996), 팀 환경에서 한 사람의 리더가 존재하는 것과 둘 이상의 리더가 공존하는 것 중에서 더 바람직한 것이 무엇인가에 대한 답을 얻기 위해 최근 연구자들은 공유리더십(shared leadership) 연구에 노력을 기울여 왔다(O’Toole et al., 2002). 본 연구는 지금까지 연구가 미흡했던 공유리더십이 팀 유효성에 미치는 영향과 함께 이들 사이의 관계에 있어 과업조정 및 업무분담 팀 프로세스의 매개효과에 대한 검증을 시도하였다. 본 연구는 선행 연구를 토대로 공유 리더십과 팀 유효성과의 관계를 77개 프로젝트 팀에 참여하고 있는 339명의 대학생을 대상으로한 설문조사를 통해 실증적으로 검증하고자 하였다. 가설 검증 결과 얻어진 몇 가지 사실에 대해 논의하면,첫째, 공유리더십은 팀 효능감 및 팀 몰입에 유의한 영향을 주는 것으로 나타났다. 둘째, 직무와 관련된 팀 프로세스, 즉 업무분담 및 과업조정은 공유리더십과 팀 효능감, 팀 몰입 간의 관계를 부분매개하고 있는 것으로 나타났다. 이는 팀 내 공유리더십이 팀 효능감과 팀 몰입에 직접적인 영향을 주는 한편, 업무분담 및 과업조정이라는 팀 프로세스를 통해 팀 성과변수에 간접적으로 영향을 주고 있음을 시사해주고 있다. 연구결과를 토대로 연구의 시사점과 향후 연구방향을 제시하였다