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.     

Decision Development in Computer-Assisted Group Decision Making

New computer technologies to aid group communication and decision making are becoming increasingly widespread. This study analyzes how one such technology, a group decision support system (GDSS), affected how group decisions developed over time. The study contrasted decision paths in groups using the GDSS with groups using the same procedural structures incorporated in the GDSS manually and with groups using no procedural structures. A flexible phase mapping method was employed to map group decision paths. The resulting set of seven decision paths varied in both sequence and number of decision phases. An optimal matching procedure was used to compute similarity measures among the 40 paths, and cluster analysis and multidimensional scaling were used to generate an empirical taxonomy of decision paths. Results indicated that the nature of decision paths varied both across the three conditions and within conditions. The decision path types were also related to three outcome variables: consensus change, perceived decision quality, and decision scheme satisfaction. Results indicated that those decision paths that most resembled logical normative sequences had superior outcomes to those that did not.     

Leadership among Patients in Group Therapy

Despite the nearly universally shared agreement among group therapists about the importance of group norms, empirical studies have rarely demonstrated a positive relationship between specific norms in psychotherapy groups and patient benefit. The study explored this relationship by examining the linkages between norms, a specific therapeutic process, and patient outcome. Examined were seventy-two spousal bereavement groups. Subjects' responses to a thirty-one item behavioral inventory were used to define norms; outcomes were based upon Time 1/Time 2 differences on a series of eleven measures indexing depression, anxiety, somatic symptoms, abuse of psychotropic medication, coping mastery, well-being, self-esteem, target problem rating, several measures of role stress and strain, and stigma. The findings suggest that normative characteristics were linked to a process, reciprocal social exchange, that influences positive outcomes. The results are preliminary, since they only serve to demonstrate such a relationship can exit.     

Leadership Style,Anonymity, and Creativity in Group Decision Support Systems: The Mediating Role of Optimal Flow

ABSTRACT Prior research indicates that flow, a psychological state characterized by concentration, enjoyment, and intrinsic motivation, may be linked to creativity of individuals participating in computer-mediated meetings. A laboratory experiment was conducted to evaluate the effects of leadership style (transactional contingent reward and transformational) and anonymity level (identified and anonymous) on flow and creativity of 159 undergraduate students working in groups performing a creativity task using a Group Decision Support System (GDSS). Results demonstrated that flow mediated effects of leadership on creativity in a GDSS context, and its role may be moderated by anonymity. Results also indicated that both flow and anonymity were required for enhancing creativity in a GDSS context. Implications for practice and research are discussed.     

群体规模与领导行为对群体组织公民行为的影响

以37个工作群体中的501位员工为对象,探讨群体规模与领导行为对群体组织公民行为的影响。运用多层验证性因子分析技术对调查数据进行了检验,并在此基础上进行了最优尺度回归和偏最小二乘回归分析。结果表明,群体规模越大,群体组织公民行为的水平越低。领导的个人品德和团队维系行为对群体组织公民行为具有显著的正向影响作用,而领导的工作绩效行为对群体组织公民行为的影响作用不显著。     

群体决策中的知识构建过程

群体决策作为管理活动的一个重要内容一直是许多学科研究的重点。在决策过程中,决策者如何利用、整合信息,从而修改其原有的认知模式,重新构建后续加工模式,即决策者在决策过程中如何进行知识构建越来越受到研究者的关注。该文从影响知识构建的因素、决策构建过程及决策绩效等方面考察了以往与群体决策中知识构建过程相关的研究,并总结了目前知识构建研究中使用的测量方法和指标     

Attack on the Self: Charismatic Leadership and Authoritarian Group Supervision

Charismatic group leadership carries the potential for indoctrination and abuse when countertransference issues remain unexamined. This paper is a personal account of participation by the author in an authoritarian and confrontational supervisory experience with self-serving charismatic leadership. Group casualties are portrayed and discussed. This report applies self-psychological principles to understand the powerful merger of the compliant self and idealized object. Further, the dynamics of group identification with the aggressor are described through the Ferenczian lens of confusion of tongues.     

Assessment in Organisations

Cet article aborde les pratiques actuelles et les tendances émergentes de l’évaluation dans les organisations. Une attention particulière est accordée a l’évaluation en vue du recrutement et de la selection, là où l’apparition de la méta‐analyse a fondamentalement changé la conception que l’on pouvait avoir des tests psychologiques et autres techniques de sélection. On analyse aussi l’impact d’Internet sur les pratiques de sélection. En ce qui concerne l’évaluation post‐embauche, l’obligation pour les organisations d’assumer des changements rapides est raportée à l’importance de la modélisation des compétences. Quelques points‐clés de l’évaluation post‐embauche sont passés en revue (leadership, feedback à 360°). Des perspectives pour la nouvelles recherches sont esquissées; il s’agit de créer des théories et des modèles plus pertinents, mais aussi de progresser dans les études de validitéà partir les données existantes. Finalement, on s’aperçoit que l’essentiel de la littérature actuelle s’appuie sur des recherches réalisées aux Etats‐Unis, un peu au Royaume Uni ou dans d’autres pays d’Europe. Beaucoup de ces recherches sont limitées dans leurs possibilités d’application en ce sens qu’elles ont été men?es sur de grandes organisations. On insiste sur le manque de travaux interculturels et sur la nécessité de s’intéresser à l’ensemble des organisations de travail (des grandes aux petites, des enterprises locales aux multinationals, aux secteurs public et privé). The article considers current practice and merging trends in assessment in organisations. Particular attention is paid to assessment for recruitment and selection, where the use of meta‐analysis techniques has radically changed the way in which psychological tests and other selection techniques are viewed. The impact of the Internet on selection practice is also discussed. For post‐hire assessment, the impact of the need for organisations to undergo rapid change is considered in relation to the importance of competency modelling. Some key areas (leadership, 360‐degree feedback) of post‐hire assessment are reviewed. Issues for future research are outlined. These include the need for better theory and models, together with the need to move ahead of a reliance on old data sets. Finally, it is noted that much of the current literature is based on research in the United States (with some from the United Kingdom and other parts of Europe). Much of the research is also limited in applicability in that it is based on large organisations. The need for more cross‐cultural studies and the need to cover the full range of work organisations (large to small; local to global; private to public sector) is emphasised.     

Personal and Professional Boundary Attitudes and Effective Group Leadership in Classrooms

The influence of personal boundary orientation (Boundary and Fusion dimensions of the Personal Boundary Questionnaire) and views on classroom boundary regulation (Classroom Boundary Questionnaire) on effective group leadership was studied by observation in classrooms of 8 male and 22 female elementary school teachers. A preference for higher personal boundaries was associated with a preference for greater regulation of classroom boundaries, which was in turn associated with less boundary-related activity in the classroom. Classrooms with less boundary-related activity had less active deviancy (all correlations p < .05). Tendencies toward fusion were not associated with differences in classroom management attitudes or behavior, but teachers with greater fusion tendencies had classrooms with less work involvement and a social climate characterized by more competition and friction (My Class Inventory scales). Personal and professional boundary attitudes helped to account for differences among teachers as effective group managers.     

Group Leadership: Practical Points for Beginners

Many practitioners do not use groups as a part of their counseling strategy because they lack applied skills or are discouraged by past failure. This article discusses eight practical points, often overlooked in establishing and running group programs. When properly applied, these points can have positive impact on the group leader's effectiveness.     

Microlevel Structuration in Computer-Supported Group Decision Making

The theory of Structuration focuses on how actions by members of social collectives create the structures that enable and constrain future action. Most previous research on Structuration in groups and organizations used qualitative case studies because Structuration is quite complex. This study introduces a method for the study of Structuration in larger samples of groups or organizations. A category system for the identification of structuring moves is described, along with several methods for characterizing short- and long-term trends in Structuration processes. The method is used to study how groups incorporate a computerized group decision support system (GDSS) into their decision processes. GDSSs are part of a class of new computer and communication technologies designed to help groups improve their meetings and make better decisions. Because GDSSs must be used by a group rather than an individual, social processes are critical in determining their effects on group outcomes. GDSSs influence groups by structuring their activities, and structurational processes are critical mediators of the impacts of GDSSs on group decision making. The study focused on the effects of restrictiveness of GDSS technology on Structuration processes and, in turn, on the relation of Structuration to a key group outcome, consensus change. The results suggest that two major types of structuring processes occur in computer-supported groups and that the nature of structuration is related to degree of consensus change.     

The Rank-Order Effect in Group Decision Making

Many studies indicate that group discussion candisproportionately reflect information known by all group members,at the expense of information known to only one group member, andthis is associated with suboptimal group decisions (Stasser &Titus, 1985). The present study examined the impact of threeprocedural factors on information sharing and quality of groupdecision: (a) group decision procedure (an instruction to "rankorder the alternatives" vs "choose the best alternative"), (b)information access during group discussion (reliance on memory vscomplete access), and (c) communication technology (computer vsface to face). Three-person groups worked on an investment decisionthat was structured as a hidden-profile task where criticalinformation was distributed unevenly prior to group discussion. Thedata provided support for a rank-order effect: Groups instructedto rank order the alternatives, compared to groups instructed tochoose the best alternative, were more likely to fully consider allof the alternatives, exchange information about unpopularalternatives, and make the best decision. But these effects onlyoccurred in face-to-face groups. In computer-mediated groups, therewas general information suppression and no effect of group decisionprocedure. Access to information during group discussion increaseddiscussion of both unique and common information, in theface-to-face conditions, but had no effect on group decisionquality. Taken together, the data suggest that procedural aspectsof group discussion may help overcome the impact of prediscussionpreferences on information processes and group decision.     

Effects of Consensus Information and Task Demonstrability on Preference-Consistent Information Evaluation and Decision Quality in Group Decision Making

Groups often fail to solve hidden profiles even when all information is exchanged. This is partly due to biased evaluation of information. We examined the effects of consensus information and task demonstrability on preference-consistent information evaluation and decision quality. The results showed that the evaluation of unshared but not shared information was moderated by consensus information and task demonstrability. For unshared information, majority members exhibited a higher evaluation bias favoring preference-consistent information than minority members. Task demonstrability reduced the evaluation bias only when group members received no information about the other members' preferences. Finally, majority members were less likely to solve the hidden profile than minority members, and this was partially mediated by the evaluation bias favoring preference-consistent unshared information.     

Framing Effects and Choice Shifts in Group Decision Making

An experiment was conducted to examine the effects of framing on group decision-making. Decisions involving risk were posed in terms of either gains or losses to individual subjects. Subsequently, subjects were divided into groups and the decisions were presented again in either the same frame or the opposite frame. As hypothesized, when the same frame was presented to subjects both individually and in groups, individual-level framing effects became larger in groups; when the opposite frame was presented to groups, initial framing effects were reduced. However, these results were observed on only two of the four decision cases. On the other two cases, significant choice shifts occurred independently of the framing manipulations. Implications of these results for decision making groups in applied settings are discussed.     

小学生领导力萌芽与发展的实证研究

摘 要 本研究以四年级学生为研究对象,通过话语分析,探究了八个无领导小组八次讨论过程中领导力的萌芽状况及其影响因素。结果发现,小学生可自发出现领导力行为,但只有两个小组会涌现出明显的领导者,并表现为独立领导和协同领导两种不同模式。对学生和教师行为的综合分析显示,学生领导力的形成与教师示范、反馈及同伴互动存在密切关系,这对学生领导力的培养具有重要的启示意义。     

The Relationship Between Leadership Behaviors and Group Cohesion in Team Sports

The relationship between leadership behaviors and team cohesion among baseball and softball players at two school levels was analyzed in relation to predictions based on Chelladurai and Carron's (1978) Multidimensional Model of Leadership (MML). Athletes (n = 307) completed the perceived and preferred versions of the Leadership Scale for Sports (LSS) and the Group Environment Questionnaire (GEQ). Athletes' coaches (n = 23) completed the self-perceived version of the LSS. Task and social cohesion were assessed in relation to the scales of the three individual versions of the LSS and in relation to two types of discrepancy scores: value and perceptual. Although the concept of discrepancy is prominent in MML theory, the perceptual discrepancy score represents an innovation. Results indicated that, in general, team cohesion was most strongly related to the perceived LSS version and the perceptual discrepancy scores.