Group Communication During Resource Dilemmas: 4: The Effect of Group Size

Previous theory and research implies that increasing the size of groups facing resource dilemmas results in poorer outcomes, but no previous study has allowed for communication among group members. The present study relates group size with communication content, task outcomes, and participant perceptions of their experience. With communication, actual group size was irrelevant; to the extent that groups chose to cooperate, outcomes were more equal within groups and participants had more positive perceptions. Greater information exchange and negative maintenance talk was related with less equal outcomes and more negative perceptions; more discussion relevant to specific strategy was associated with more equal outcomes. Findings are instructive concerning the genesis and role of group cooperation.     

Group heterogeneity and tolerance: The moderating role of conservation values

Does diversity promote tolerance? We propose that reactions to group heterogeneity depend on individual value priorities. In three studies we investigate how values moderate the effect of raising the salience of group heterogeneity (versus homogeneity) on tolerance. As hypothesized, the findings indicate that conservation values moderate the effects of the saliency of the group's heterogeneity. People high on conservation values were more tolerant when the group's homogeneity was made salient than when its heterogeneity was made salient. People low on conservation were either insensitive to information on the group's heterogeneity (Studies 1 and 2), or were more tolerant when the group's heterogeneity was made salient than when its homogeneity was made salient (Study 3). Values are also directly associated with tolerance: conservation values (as well as SDO and RWA in Study 3) were negatively associated whereas openness-to-change and self-transcendence values were positively associated with tolerance. These findings indicate the importance of integrating individual and contextual variables in theories of group processes.     

Deviant but desirable: Group variability and evaluation of atypical group members

Two studies investigated how group variability affects reactions to atypical group members. In Study 1 (N = 65) we manipulated group variability and found that an atypical group member was evaluated more positively when the group was heterogeneous than when the group was homogeneous. In Study 2 (N = 276) we also manipulated group value and found a significant interaction whereby an atypical group member was evaluated more positively when the group was homogeneous and group members valued heterogeneity, but was evaluated more negatively when the group was heterogeneous and group members valued homogeneity. The results suggest that deviant or atypical members will not inevitably be rejected by the group, but rather that reactions to deviance are shaped and guided by the dynamic relationship between how the group is perceived by its members and their ideological beliefs about what is good for the group.     

Essential theory, processes, and procedures for successful group psychotherapy: Group cohesion as exemplar

With few exceptions or at the very least cautions (cf. Burlingame, MacKenzie & Strauss, 2003) group psychotherapy has proven to be an effective and efficient treatment for a number of psychological disorders (Burlingame, Kapetanovic, & Ross, 2005). This article will briefly describe a theory that underlies successful group therapies. In addition, certain group processes—those elements that occur during the group itself that appear to be necessary conditions for improved patient outcomes—will also be addressed, although unfortunately, the sufficient conditions tying moment-to-moment process to actual outcome (improved patient functioning by the end of therapy, and at 6-month follow-up, for instance) are not quite as easily delineated. A closer study of the group therapeutic factor cohesion will be utilized as an example of these practice and research dilemmas. Finally, suggestions for future directions, which might more clearly uncover important connections between process and outcome, are addressed.     

The Political Manipulation of Group Composition: Engineering the Decision Context

Group decisions are not made solely by evaluating the merits of the contending positions. Instead, actors may engage in manipulation to increase the fortunes of their policy preference. Actors may manipulate information, group procedures, or group composition. Using a model of group socialization, this paper argues that a manipulator may seek to alter the group composition as to access and/or status. In doing so, the manipulator seeks to create a more favorable decision environment. This political perspective maintains that the dynamic nature of group composition provides an opportunity for a manipulator to engineer the decision context, potentially affecting the group's decisional output. Strategies and tactics of composition manipulation are presented and then utilized to analyze the American decision process during the Iranian revolution.     

Group information elaboration and group decision making: The role of shared task representations

Decision making groups often exchange and integrate distributed information to a lesser extent than is desirable for high-quality decisions. We propose that group members’ shared task representations play an important role in this respect, because groups are often insufficiently attuned to the task’s information elaboration requirements. Task representations emphasizing elaboration of decision-relevant information should therefore enhance decision-making performance. This should hold especially when group members realize that they share these task representations, because this realization removes psychological barriers to introducing new insights. Testing these hypotheses, we compared information elaboration and decision-making performance of control groups and groups receiving instructions emphasizing information elaboration in two experiments. Half of the experimental groups were also made to realize that they shared the elaboration instructions. As predicted, groups with task representations emphasizing information elaboration and the realization they shared these representations outperformed groups in the other conditions. This effect was mediated by information elaboration.     

Group decision process and incrementalism in organizational decision making

In two studies examining resource allocation, support is found for the notion that group decisions are affected in systematic ways depending on whether or not there was individual consideration of the problem before meeting as a group. Specifically, compared to no prior consideration groups, prior consideration groups (1) escalate their commitment more in progress (i.e., ongoing) decisions, and (2) are less willing to concentrate resources on a single project in adoption (i.e., resource utilization) decisions. The findings challenge the blanket assertion that promoting divergent views in a group decision context is always related to better decisions.     

The Adaptive Use of Recognition in Group Decision Making

Applying the framework of ecological rationality, the authors studied the adaptivity of group decision making. In detail, they investigated whether groups apply decision strategies conditional on their composition in terms of task‐relevant features. The authors focused on the recognition heuristic, so the task‐relevant features were the validity of the group members' recognition and knowledge, which influenced the potential performance of group strategies. Forty‐three three‐member groups performed an inference task in which they had to infer which of two German companies had the higher market capitalization. Results based on the choice data support the hypothesis that groups adaptively apply the strategy that leads to the highest theoretically achievable performance. Time constraints had no effect on strategy use but did have an effect on the proportions of different types of arguments. Possible mechanisms underlying the adaptive use of recognition in group decision making are discussed.     

The 40 Members of the Toronto 18: Group Boundaries and the Analysis of Illicit Networks

Increases in studies on the network dynamics of crime groups and co-offending has led many scholars to reflect on potential measurement biases arising from a reliance on official data sources. A problem of official data is that it forces boundaries on criminal groups that are much more fluid and dynamic than they seem. Drawing from interviews with an individual embedded in a terrorist organization and court documents records, we apply longitudinal network methods to examine the extent to which official data influences assessments of a criminal group. Findings show that only a minority of participants interacting with the group were charged for a crime. Yet the majority had an impact on the evolution of the group. Ignoring non-criminal affiliates masks the full scope of covert groups and the variation that can assist in understanding how groups emerge and evolve.     

Cooperative Learning Contingencies: Unrelated versus Related Individual and Group Contingencies

College students operating under related cooperative contingencies (students had to earn individual credit before being considered for group credit) showed more consistent individual and group improvement on exam performance than students operating under unrelated contingencies (individual credit and group credit were independently determined). A balanced ratio between individual and group credit proved to be the most productive ratio under the related contingency, whereas a ratio favoring group credit over individual credit proved most productive under the unrelated contingency. In general, a ratio favoring individual credit over group credit was the least productive in promoting both individual and group improvement under both unrelated and related contingencies. The findings showed less difference in improvement of exam scores for students of different performance levels than had been evident in previous research.     

Group therapy for pathological gamblers: a cognitive approach

This study evaluated the efficacy of a group cognitive treatment for pathological gambling. Gamblers, meeting DSM-IV criteria for pathological gambling, were randomly assigned to treatment (N=34) or wait-list control (N=24) conditions. Cognitive correction techniques were used first to target gamblers' erroneous perceptions about randomness, and then to address issues of relapse prevention. The dependent measures used were the DSM-IV criteria for pathological gambling, perceived self-efficacy, gamblers' perception of control, desire to gamble, and frequency of gambling. Post-treatment results indicated that 88% of the treated gamblers no longer met the DSM-IV criteria for pathological gambling compared to only 20% in the control group. Similar changes were observed on all outcome measures. Analysis of data from 6-, 12- and 24-month follow-ups revealed maintenance of therapeutic gains. Recommendations for group interventions are discussed, focusing on the cognitive correction of erroneous perceptions toward the notion of randomness.     

Psychology and the End of History: A Critique and a Proposal for the Psychology of Social Categorization

This paper suggests that self-categories provide the basis for political action, that those who wish to organize political activity do so through the ways in which they construct self-categories, and that political domination may be achieved through reifying social categories and therefore denying alternative ways of social being. Hence, the way in which social psychology approaches the matter of self-categorization provides a touchstone for its politics. To the extent that we too take categories for granted, we are in danger of supporting conservative and undemocratic politics. The only way to eschew tendencies toward reification within social psychology is to add a historical dimension to our own analysis of self-categorical processes.     

The Problematics of Human Subjectivity: Gilles Deleuze and the Deweyan Legacy

This article is part of alarger project exploring the continuity betweentwo philosophical positions – that of Frenchpoststructuralist Gilles Deleuze (1925–1995)and John Dewey – that appear at first sight tobe separated by time, place and culture. Thescope of the present paper is necessarilylimited and focuses on one aspect of theproject, namely: the problematics ofsubjectivity, or subject formation, inDeleuze's philosophy. Deleuze's position isestablished as pragmatic by virtue of itssharing the value allotted by Dewey toexperiential and experimental inquiry inphilosophy. By drawing initial parallels with anumber of selected Dewey's excerpts, this paperaims to open up a space for the imaginarydialogue between two philosophical thoughts soas to consider a possibility for applyingDeleuze's philosophy to educational theory andpractice in the context of current debates andin a manner continuous with the Deweyan legacy.The paper concludes by affirming Deleuze'splace in the contemporary scholarship on Dewey.     

Up front and personal: confronting dynamics in the Family Group Conference

The Family Group Conference is a participatory model of decision making with families in child protection. It is a legal process that brings together the family, including the extended family, and the professionals in a family-led decision-making forum. Bringing together extended family and professionals to discuss child protection concerns can create a highly charged dynamic. Workers are challenged by family, family are challenged by workers, and family members challenge each other. Practice is also exposed to wider scrutiny as professionals also challenge the work. This article briefly describes the development and practice of family group conferencing as a family-centred legal process in Aotearoa, New Zealand. It then examines the findings of a study exploring the dynamics emerging from family group conference practice from the perspective of the coordinators who convene them. Family group conferencing as a family strengthening practice is discussed.     

Group cognition,membership change,and performance: Investigating the benefits and detriments of collective knowledge

This study analyzes the effects of group membership change on group cognition and performance to determine how groups can simultaneously leverage oldtimers’ collective knowledge and a newcomer’s expertise. Our analysis focuses specifically on the interrelated effects of the two components of a transactive memory system (TMS)—TMS structure and TMS processes—to explain the cognitive mechanisms through which membership change affects group performance. Results from a laboratory study show that groups that experience partial membership change tend to rely on the TMS structure that oldtimers developed in their original group, and that doing so is ultimately detrimental to performance because it creates inefficient TMS processes. Results from a supplemental study indicate that these TMS process inefficiencies can be avoided when oldtimers are instructed to reflect upon their collective knowledge prior to task execution. We discuss the implications for managing group cognition in organizations where membership change is prevalent.