Search

The current research investigated two rarely used appeals for increasing organ donor registration–both with the potential to backfire. The three-in-1000 appeal explains that less than one percent of people will die in such a way that their organs can be donated. This appeal could heighten awareness that donor registration is needed, but it can also convey that registering is futile. The dynamic norms appeal emphasizes the increasing number of people who are becoming registered donors. This appeal could increase the perceived normative nature of registration, but doing so can also lead potential donors to conclude that enough people are already registered. In Studies 1 and 2, participants recruited from Amazon's Mechanical Turk were randomly assigned to either one of these appeals, and their attitudes toward donor registration and intentions to register as a donor were compared to participants in a no-message control group. Study 2 included a qualitative component where participants were asked to describe their perceptions as to why the message was or was not influential. In both experiments, intentions to register were higher for those in both messaging conditions compared to the control group. Positive attitudes toward organ donation were higher in the three-in-1000 condition compared to the control group for both studies. Those in the dynamic norms condition reported more positive attitudes than the control group in Study 1, but not Study 2. In both studies, there was scant evidence of the messages backfiring. In the qualitative component of Study 2, self-reported reasons for the influence of each method provided insight into how and why these appeals were influential, and indicated signs of underdetection for the dynamic norms message. • Two rarely used appeals for increasing organ donor registrations were investigated. • Messages stating how few people can successfully donate organs increased intentions. • Messages focused on the increasing number of donor registrants increased intentions. • Both approaches have the potential to increase registrations and thus save lives. [ABSTRACT FROM AUTHOR]

Although communicating so-called 'dynamic norms' may promote sustainable consumption behavior, the present study challenges the assumption that their impact is inevitably positive. On the contrary, it seeks to expand current research by establishing when and why sources with vested motives may result in a backfiring effect of dynamic norms. Our experiment (N= 352) investigates consumers' intentions to reduce their meat consumption after reading norm messages from different sources (i.e., a researcher, vegan activist, company representative). In line with the predictions, dynamic norm messages from a researcher led to more sustainable consumption choices than identical messages communicated by a vegan activist or company representative while controlling for gender. Concerning the underlying theoretical mechanisms, a perceived moral superiority and ensuing psychological reactance sequentially explained the backfiring effect for the vegan activist. The backfiring effect for the company representative was mediated by a perceived pro-self-motivation that again resulted in elevated consumer reactance. Overall, the present findings establish the crucial importance of a nudge's source that either fosters or undermines the effectiveness of a dynamic norm message in eliciting sustainable behavior. The results not only contribute to the academic debate on nudging, but can also inform practitioners to choose the most powerful sender (e.g. academics) when designing sustainable norm interventions. [ABSTRACT FROM AUTHOR]