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71.
This article reviews research into the use of virtual reality in the study, assessment, and treatment of body image disturbances in eating disorders and nonclinical samples. During the last decade, virtual reality has emerged as a technology that is especially suitable not only for the assessment of body image disturbances but also for its treatment. Indeed, several virtual environment-based software systems have been developed for this purpose. Furthermore, virtual reality seems to be a good alternative to guided imagery and in vivo exposure, and is therefore very useful for studies that require exposure to life-like situations but which are difficult to conduct in the real world. Nevertheless, review highlights the lack of published controlled studies and the presence of methodological drawbacks that should be considered in future studies. This article also discusses the implications of the results obtained and proposes directions for future research. 相似文献
72.
A fundamental problem in organizations is designing mechanisms for eliciting voluntary contributions from individual members of a team who are entrapped in a social dilemma. To solve the problem, we utilize a game‐theoretical framework that embeds the traditional within‐team social dilemma in a between‐team competition for an exogenously determined prize. In equilibrium, such competition enhances the incentive to contribute, thereby reducing free‐riding. Extending existing literature, we focus on asymmetric competitions between teams of unequal size, and competitions between more than two teams. Comparing two protocols for sharing the prize—egalitarian and proportional profit‐sharing rules—we find that (i) free‐riding diminishes and (ii) team members contribute more toward their team's effort when they belong to the larger team and when the profit‐sharing rule is proportional. (iii) Additionally, under the egalitarian profit‐sharing rule team members contribute more than predicted by the equilibrium solution. We discuss implications of our findings for eliciting contributions in competitive environments. Copyright © 2009 John Wiley & Sons, Ltd. 相似文献
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74.
团队任务冲突与团队领导行为及团队学习的关系研究 总被引:1,自引:0,他引:1
本研究旨在探讨项目团队领导基于角色的不同行为对团队内部的任务冲突互动,以及团队学习的影响.以128个项目团队为研究对象进行的问卷调查结果表明,在领导行为与团队学习的关系中任务冲突存在显著的中介效应.其中,团队领导的促进者与指挥者角色行为完全通过任务冲突的中介传导,对团队学习产生影响,;而领导的创新型行为则通过任务冲突的部分中介作用,产生对团队学习的正向影响. 相似文献
75.
When business transactions take place between strangers, individuals rely on the cues during communication to determine whether they can trust others’ intentions. How that process occurs in the context of computer-mediated, video-mediated, and face-to-face interactions is still somewhat unknown. We examine how media richness influences both affective-based and cognitive-based trust in the context of two studies with two different social dilemma scenarios. Further, we explore how these two types of trust influence not only non-cooperative behavior (defection) but also lying (deception). Results from the first study suggest cognitive-based trust mediates the relationship between media richness and defection, while results from both studies suggest that affective-based trust mediates the relationship between media richness and deception. Video-mediated communication solves some, but not all, of the problems inherent when interacting via communication technology. 相似文献
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77.
Previous studies showed a robust and positive relationship between subordinates' trust for leaders and their individual organizational citizenship behaviours. Building on this foundation, we examined two extensions. First, based on the team citizenship behaviours approach, we studied whether the same relationship held at the group level. Second, drawing from literature on leadership and self-efficacy, we studied whether leaders' perceptions of being trusted by their subordinates mattered in this trust relationship; we also examined how this perception affected team citizenship behaviours. Results showed that subordinates' trust for leaders and team citizenship behaviours were positively related at the team level. When leaders felt more trusted, teams showed more citizenship behaviours. Beyond these main effects, leaders' felt trust was found to negatively moderate the relationship between staff trust for leaders and team citizenship behaviours. Theoretical and practical implications of this research are discussed. 相似文献
78.
Using performance feedback to enhance implementation fidelity of the problem-solving team process 总被引:1,自引:0,他引:1
Implementation integrity is a potentially critical issue for problem-solving teams (PST) and most response-to-intervention models. The current study hypothesized that providing performance feedback, which has consistently been shown to increase implementation integrity, to PSTs would enhance the procedural integrity of the process. The PSTs for three elementary schools were provided performance feedback with a 20-item checklist created from the literature. A multiple-baseline design across schools revealed an immediate change in level after providing performance feedback. The resulting percentages of non-overlapping data were 90.9%, 90.0%, and 100%. However, PSTs still did not monitor student progress, assess the effectiveness of the intervention, or measure the integrity with which the intervention was implemented even after receiving feedback. Thus, providing performance feedback could be a method to increase the fidelity with which critical components of data-based problem-solving are implemented, but these data suggest the need for additional research. 相似文献
79.
Using a meta‐analytical procedure, the relationship between team composition in terms of the Big‐Five personality traits (trait elevation and variability) and team performance were researched. The number of teams upon which analyses were performed ranged from 106 to 527. For the total sample, significant effects were found for elevation in agreeableness (ρ = 0.24) and conscientiousness (ρ = 0.20), and for variability in agreeableness (ρ = ?0.12) and conscientiousness (ρ = ?0.24). Moderation by type of team was tested for professional teams versus student teams. Moderation results for agreeableness and conscientiousness were in line with the total sample results. However, student and professional teams differed in effects for emotional stability and openness to experience. Based on these results, suggestions for future team composition research are presented. Copyright © 2006 John Wiley & Sons, Ltd. 相似文献
80.
在高不确定,高度竞争,高度挑战的任务情景下,领导力在团队中将扮演怎样的角色?变革型领导力与交易型领导力又是如何预测团队任务绩效的?为了回答这些问题,该研究对130名学生被试,31个团队,用ERP沙盘模拟游戏来进行模拟实验。通过高度模拟现实中企业经营的情景,从而提高实验结果的外部效度。实验结果表明,变革型领导力与交易型领导力都能够积极地预测团队任务绩效,消极领导力与任务绩效呈负相关,虽然并没有达到统计学显著水平,但研究结果的方向都支持了实验假设。 相似文献