Social Networks, Transactive Memory and Team Performance: An Experimental Investigation

团队越来越多地用于各种组织环境，包括教育、医疗保健、政府和营利性公司。有关如何提高其有效性的信息有望改善美国组织的绩效和竞争力，并改善其成员的福祉。我们提出的研究不仅对传统工作环境中的团队有影响，而且对新兴环境（如分布式工作团队和在线社区）也有影响。我们确定的沟通模式，导致最强的交互记忆和最高的团队绩效。因此，研究将产生的信息，团队成员和领导者可以使用，以提高他们的团队绩效。此外，开发一种经颅磁刺激的行为测量方法将使研究人员能够在大型团队和地理分布环境中分析经颅磁刺激，这在世界各地的组织和在线社区中变得越来越普遍。总之，这些结果有可能促进我们对团队协作、团队组建、沟通网络和团队绩效的理解。本研究探讨通讯网络对互动记忆系统发展及团队绩效的影响。交互记忆系统（TMS）是一个用于编码、存储和检索信息的集合系统。与缺乏tms的团队相比，拥有完善tms的团队在各种任务中表现得更好。TMS被称为“谁知道什么”的系统，它通过团队成员之间的交流和互动产生，因为他们学习并依赖彼此的技能和知识。虽然经颅磁刺激依赖于交流和互动，但很少有关于交流网络如何影响一个群体的经颅磁刺激的研究。通信网络限制或支持团队内部的通信，从而潜在地改变TMS的开发。我们的研究调查了通信网络的特点，这些特点促进了经颅磁刺激的发展，在一系列的研究中结合了互补的实验室和档案方法。首先，我们在实验中操纵团队内部存在的沟通网络，以检验网络特征对团队TMS和绩效的影响。我们研究了团队绩效的两个维度：错误数量和创造力。其次，因为在许多情况下，个体选择自己的网络和/或他们在网络中的位置，我们比较了实验者强加的网络和位置分配与参与者选择的网络和位置分配的影响。这使我们能够确定观察到的影响是由于通信网络本身还是由于参与者制定的网络。通过对网络的操纵和对网络和网络中的位置的随机分配，我们能够对网络特征对经颅磁刺激开发和团队绩效的影响做出因果陈述。第三，利用我们的实验数据，我们将开发和完善一种新的不引人注目的经颅磁刺激行为测量方法。这一措施将适用于使用在线网络进行大规模技术中介项目的真实团队的数据。在验证这个新的TMS度量之后，我们将检查它与大型在线团队的性能之间的关系。

Teams are increasingly used in a variety of organizational contexts, including education, health care, government and for-profit firms. Information about how to increase their effectiveness promises to improve the performance and competitiveness of organizations in the U.S. and the well being of their members. Our proposed research has implications not only for teams in traditional work settings but also in new emerging settings such as distributed work teams and online communities. We identify the patterns of communication that lead to the strongest transactive memory and the highest team performance. Thus, the research will result in information that team members and leaders can use to improve their team's performance. In addition, the development of a behavioral measure of TMS would enable researchers to analyze TMS in large teams and geographically distributed contexts, which are becoming increasingly prevalent in organizations and online communities around the world. All together, the results have the potential to advance our understanding of team collaboration, team formation, communication networks and team performance.The research examines the effects of communication networks on transactive memory system development and team performance. A transactive memory system (TMS) is a collective system for encoding, storing and retrieving information. Teams with well-developed TMSs have been found to perform better across a variety of tasks compared to teams lacking TMSs. Known as systems of "who knows what," a TMS emerges through communications and interactions among team members as they learn and rely on each other's skills and knowledge. Although a TMS hinges on communication and interaction, very little research has been conducted on how communication networks affect a group's TMS. Communication networks constrain or enable communication within a team and thus potentially alter the development of TMS. Our research investigates the characteristics of communication networks that enhance the development of TMS in a series of studies incorporating complementary laboratory and archival methods. First, we manipulate the communication networks that exist within teams in an experiment to examine the effects of network characteristics on the team's TMS and performance. We investigate two dimensions of team performance: the number of errors and creativity. Second, because in many contexts individuals choose their own networks and/or their positions within the network, we compare the effects of networks and position assignments that are imposed by the experimenter to those that are chosen by participants. This enables us to determine if effects observed are due to the communication network itself or due to participants' enactment of the network. By manipulating the networks and using random assignment to networks and to positions within the networks, we are able to make causal statements about the effects of network characteristics on TMS development and team performance. Third, using data from our experiments, we will develop and refine a new unobtrusive, behavioral measure of TMS. This measure will be applied to data from real teams who use online networks for large-scale technology-mediated projects. Following the validation of this new TMS measure, we will examine how it relates to performance for large online teams.