为了解决全球废物危机,迫切需要在多个层面采取果断和联合行动。社区的集体行为可以做出重大贡献。本文介绍了一项旨在在新成立的社区环境中促进包装废物预防的现场实验的结果,在柏林,德国。目的是检查干预措施对预循环的影响,并检查潜在的社会认同过程。在四周的时间里,来自96个不同家庭的132名参与者以数字方式接受了不同干预措施的组合,从理论上讲,这是由亲环境行动的社会身份模型(SIMPEA)提供的。家庭被分配到两个干预组和一个等待对照组。数据是之前收集的,干预后立即和干预后4个月,使用多水平模型评估干预的影响。干预之后,整体预抱行为显著增加,但不是由于不同的群体条件。在更全面的干预组中,其中包括社会互动和行为实验,加强了社区认同和重用行为,作为预循环的一个子集,增加。虽然一些社会认同过程(集体效能信念,有一个预先行动目标,危机评估,和充足的态度)被发现可以积极预测预倾斜行为,令人惊讶的是,社会规范和群体识别的预测能力无法得到证实。总的来说,提出的社区干预促进了预循环。然而,在这个动态的现实世界中,并非所有干预要素都能按预期工作。讨论了这种干预的陷阱和机会,并提出了将结果转化为日常预循环活动的想法。
To tackle the global waste crisis, there is an urgent need for decisive and joint action at multiple levels. The collective behavior of a community could make a significant contribution. This paper presents the results of a field experiment designed to promote packaging waste prevention - called precycling - in a newly formed community setting, in Berlin, Germany. The aim was to examine the effect of the intervention on precycling and to examine the underlying social identity processes. Over a four-week period, 132 participants from 96 different households digitally received a combination of different interventions, that were theoretically informed by the Social Identity Model of Pro-Environmental Action (SIMPEA). Households were assigned to two intervention groups and a waiting control group. Data was collected before, immediately after and four months after the intervention to assess the impact of the intervention using multilevel models. After the intervention, the overall precycling behavior increased significantly, but not as a result of the different group conditions. In the more comprehensive intervention group, which included social interaction and behavioral experimentation, the community identification was strengthened and the reuse behavior, as a subset of precycling, increased. While a number of social identity processes (collective efficacy beliefs, having a precycling action goal, crisis appraisal, and sufficiency attitudes) were found to positively predict the precycling behavior, surprisingly, the predictive power of social norms and ingroup identification could not be confirmed. Overall, the presented community intervention promoted precycling. However, in this dynamic real-world setting, not all intervention elements worked as expected. The pitfalls and opportunities of this intervention are discussed, and ideas for translating the results into everyday precycling activities are presented.