虚拟团队共享心理模型与团队效能的关系

通过对62个虚拟团队的调研,检验了虚拟团队认同式共享心理模型与分布式共享心理模型构思,并运用多层线性建模技术,对团队特征变量、共享心理模型与虚拟团队效能间的关系进行了分析。结果表明：两类共享心理模型与团队效能间存在显著正相关;团队时间会影响共享心理模型与虚拟团队任务效能间的关系,团队时间会削弱认同式共享心理模型对任务效能间的正向关系,但能加强分布式共享心理模型对任务效能的正面影响;团队规模则主要影响共享心理模型对合作效能的效应,团队规模增加会加强认同式共享心理模型与合作效能间的相关,却会削弱分布式共享心理模型与合作效能间的关系     

团队决策中的共享信息偏差:基于隐藏文档范式的机制、影响因素探究

在决策任务中,团队由于拥有来自不同成员的多样信息,因此通常被认为能够较个体做出更高质量的决策。但大量的研究结果表明,团队对于信息的利用并非十分有效,表现在团队会更多地讨论所有成员都拥有的信息(即共享信息),而相对忽视了每个成员所独有的信息(即非共享信息),这种现象被称为"共享信息偏差(Shared information bias)"(StasserTitus,1985)。共享信息偏差的存在阻碍了团队获取更高质量的决策结果。本文基于隐藏文档范式,针对共享信息偏差的产生原因,分别介绍了信息取样模型、动态信息取样模型、相互提升效应、偏好效应这4种解释机制,并归纳总结了信息分布、团队任务特征、成员特征及动机因素这4类影响因素的作用。最后,从结合团队认知、探究情绪因素及整合团队有效性框架这三个方面对未来的研究进行了展望。     

共享心智模型和交互记忆系统:对立或协同?——基于知识管理视角

共享心智模型和交互记忆系统是知识管理领域中两个新的研究视角。共享心智模型是指团队成员共享的、对团队情境中关键要素的、系统的理解和心理表征;交互记忆系统是团队成员之间形成的一种彼此依赖的,用以编码、储存和提取不同领域知识的合作性分工系统。在分析共享心智模型和交互记忆系统内涵的基础上,作者深入剖析了两者的对立和协同关系,系统探讨了影响两者效应的情景变量,为从认知角度提高团队知识管理水平提供了理论依据。     

共享心智模型影响团队绩效的权变模型

共享心智模型指团队成员关于团队关键要素的共同的知识结构, 诸多研究表明其能有效提高团队运作效能。本研究从权变的角度入手, 以负责通讯网络监控与维护的106个高技术团队为分析对象, 探讨团队的共享心智模型与团队绩效的关系, 并揭示团队互依性作为权变因素对共享心智模型与团队绩效关系的调节效应。层次回归分析结果表明, 共享心智模型能显著预测团队绩效, 而团队互依性则负向调节两者之间的关系, 即在互依性程度较低的团队里, 共享心智模型才显著提高团队绩效。作者从共享心智模型的测量和权变因素的作用两个角度展开讨论, 并基于此提出了后续的研究方向。     

复杂任务中共享心智模型间的缓冲作用

共享心智模型（SMM）指队员对于团队的共享心理表征。复杂任务下高的一致性难以获得且易造成小集体意识,SMM的作用在于相互间的调节及共享信念对低一致性的调节作用。为了验证这些假设对9名不同行业创业者进行访谈,对访谈材料进行内容分析得到心智模型关键概念,经过概化理论分析后得到了4个SMM：任务、队友、团队协作以及团队精神。使用心智模型问卷在ERP模拟实验中测量31个团队的绩效和SMM一致性。结果发现团队协作模型一致性是预测绩效的有力指标;团队构成不影响各个SMM一致性;任务模型一致性正向缓冲了团队协作模型一致性对绩效的作用;团队精神模型一致性正向缓冲了团队协作模型一致性对绩效的作用。研究提示SMM对冲突的引导及增进团队成员相互理解方面的作用。     

团队领导行为与团队心理安全：以信任为中介变量的研究

已有的团队领导研究着重于领导行为对团队绩效的影响,而缺乏其作用机制和路径的研究。本文选取信任与团队心理安全两个变量,以142个团队为样本,对团队领导行为是否以及如何通过信任影响团队心理安全进行实证研究。研究结果表明：(1)转换型领导行为与团队心理安全之间存在正相关关系,显著地影响团队心理安全感;(2)信任是形成团队心理安全感的重要因素之一;(3)信任在团队领导行为、团队心理安全感之间的中介效应显著。     

团队共享心智模型的影响因素与效果

采用两种测量方法对团队共享心智模型的影响因素与影响效果进行探讨。多元回归和层次回归分析的结果表明,团队成员沟通得越好,就越有利于形成共享心智模型;如果团队中存在搭便车的行为越严重,就越不利于形成共享心智模型;共享心智模型有利于团队有效运作,取得好的绩效;有共享心智模型的团队,成员的满意度比较高,群体效能感较高,并且团队成员之间的密切关系会延续到工作之外;共享心智模型在团队运行过程变量和团队有效性之间起到中介作用。     

团队作业与团队互动两类共享心智模型的发展特征

共享心智模型指团队成员关于团队作业、策略、团队情境、团队互动等的共同的知识结构,根据内容不同可以分为团队作业模型和团队互动模型两类。该研究通过实验室实验探讨两类共享心智模型的发展特征。132名大学生组成44个3人团队,随机分为团队绩效反馈组和无团队绩效反馈组。采用相似性评定法在团队执行作业前、中、后三次测量两类共享心智模型。结果发现：（1）共享心智模型随团队运作时间增加而发展;（2）团队互动模型形成和发展的难度高于团队作业模型;（3）团队绩效反馈对两类心智模型发展的作用不同,反馈加速了团队作业模型的发展速度,但却是团队互动模型能否得以发展的决定性因素。两类共享心智模型的不同发展特征应归因于两者特异性高低的不同     

群体决策中非共享信息加工的影响因素研究进展

群体决策研究表明群体要实现优化的决策,需要在决策时提取和加工更多的信息,特别是那些为个体所拥有的非共享信息.本文从信息分布、群体特征和决策规则三方面人手考察了非共享信息提取和加工的影响因素研究,归纳了当前对于群体决策中非共享信息提取及加工的心理机制观点、并对非共享信息研究的方法和测量指标加以分析.     

共享心智模型对团队效能的影响——以团队过程为中介变量

本研究采用路径搜索的方法对38个团队共享心智模型进行了测量,并考察了两类共享心智模型(任务模型与团队模型)对团队过程及团队效能的影响作用.相关分析显示:两类共享心智模型与团队过程及团队效能各指标有显著相关.层级回归分析显示:共享心智模型对团队绩效产生直接作用,而共享心智模型各指标与团队效能感的关系完全受到团队沟通、合作等过程要素的中介影响.     

团队心智模型相似性与正确性对团队创造力的影响

现代组织越来越依赖团队进行创造与创新活动, 团队创造力成为理论与实践共同关注的热点问题。最新理论指出, 与个体类似, 团队也是信息加工者, 团队决策实质上也是信息搜寻、编码、存储和提取的认知加工过程。从团队认知角度开展研究是团队创造力领域的新方向。鉴于此, 本研究从团队认知的角度出发, 探讨共享心智模型与团队创造力之间的关系。基于80个信息平台运行维护团队的数据, 研究结果表明, 心智模型的相似性与正确性均能影响团队创造力, 但方向正好相反。心智模型相似性负向预测团队创造力, 而心智模型正确性则正向预测团队创造力。两者还共同影响团队创造力, 当成员心智模型正确性高且相似性低时, 团队创造力最高; 而当成员心智模型彼此相似但错误时, 团队创造力最差。本研究首次将团队认知和团队创造力两个研究领域结合起来, 研究结果有望丰富和拓展两个领域研究成果。     

Relationships among team ability composition, team mental models, and team performance

This study examined the relationship between the similarity and accuracy of team mental models and compared the extent to which each predicted team performance. The relationship between team ability composition and team mental models was also investigated. Eighty-three dyadic teams worked on a complex skill task in a 2-week training protocol. Results indicated that although similarity and accuracy of team mental models were significantly related, accuracy was a stronger predictor of team performance. In addition, team ability was more strongly related to the accuracy than to the similarity of team mental models and accuracy partially mediated the relationship between team ability and team performance, but similarity did not.     

Building team adaptive capacity: the roles of sensegiving and team composition

The current study draws on motivated information processing in groups theory to propose that leadership functions and composition characteristics provide teams with the epistemic and social motivation needed for collective information processing and strategy adaptation. Three-person teams performed a city management decision-making simulation (N=74 teams; 222 individuals). Teams first managed a simulated city that was newly formed and required growth strategies and were then abruptly switched to a second simulated city that was established and required revitalization strategies. Consistent with hypotheses, external sensegiving and team composition enabled distinct aspects of collective information processing. Sensegiving prompted the emergence of team strategy mental models (i.e., cognitive information processing); psychological collectivism facilitated information sharing (i.e., behavioral information processing); and cognitive ability provided the capacity for both the cognitive and behavioral aspects of collective information processing. In turn, team mental models and information sharing enabled reactive strategy adaptation.     

Facet personality and surface-level diversity as team mental model antecedents: implications for implicit coordination

Team mental models (TMMs) have received much attention as important drivers of effective team processes and performance. Less is known about the factors that give rise to these shared cognitive structures. We examined potential antecedents of TMMs, with a specific focus on team composition variables, including various facets of personality and surface-level diversity. Further, we examined implicit coordination as an important outcome of TMMs. Results suggest that team composition in terms of the cooperation facet of agreeableness and racial diversity were significantly related to team-focused TMM similarity. TMM similarity was also positively predictive of implicit coordination, which mediated the relationship between TMM similarity and team performance. Post hoc analyses revealed a significant interaction between the trust facet of agreeableness and racial diversity in predicting TMM similarity. Results are discussed in terms of facilitating the emergence of TMMs and corresponding implications for team-related human resource practices.     

Effects of guided reflexivity and team feedback on team performance improvement: The role of team regulatory processes and cognitive emergent states

The effectiveness of decision-making teams depends largely on the quality of information processing. Prior research has shown that guided team reflexivity and team feedback are important means of advancing team information processing and outcomes. However, the nature of the relationships, and how these relate to team regulatory processes, cognitive emergent states, and ultimately team performance, is currently poorly understood. Drawing on reflexivity and team information-processing theory, we proposed and found that teams that received guided team reflexivity or a combination of both guided reflexivity and feedback showed higher levels of actual reflection than teams that received neither a reflexivity intervention nor feedback. Conditional process analysis showed that the effects of team reflection on team performance improvement were mediated by a path from shared team mental models to shared task mental models and to adaptation. Finally, we also expected that team reflection would be lower in virtual teams than in face-to-face teams. These hypotheses were tested experimentally among 98 student teams that communicated either face-to-face or virtual (via chat) while completing a collective decision-making task. The information distribution among team members constituted a hidden profile. The results supported all our hypotheses, except for the one relating to virtuality.