Xu Mengran, Petty Richard E
Fudan University, Shanghai, China.
Ohio State University, Columbus, USA.
Pers Soc Psychol Bull. 2024 Feb;50(2):215-231. doi: 10.1177/01461672221128113. Epub 2022 Oct 10.
Prior research showed that people holding attitudes on relatively moral topics became more open to two- rather than one-sided messages as the moral basis of their attitudes increased. Across three studies ( = 963), we extend this finding to relatively non-moral topics by demonstrating that two-sided messages can encourage people with strong attitudes indexed by various non-moral attitude strength measures to be more open to contrary positions. Study 1 demonstrated this for four indicators of attitude strength (e.g., certainty). As the strength of one's attitude increased, two-sided messages increased in relative effectiveness over one-sided communication. This was mediated by perceived appreciation for the speaker acknowledging one's view. Study 2 replicated this finding in a preregistered experiment. Study 3 conceptually replicated and extended it to people holding attitudes based on their political identity. Finally, evidence was obtained supporting perceived appreciation (rather than source evaluation) as the key driver of this interactive effect.
先前的研究表明，随着人们在相对道德话题上所持态度的道德基础增强，他们对双面而非单面信息会变得更加开放。在三项研究（N = 963）中，我们将这一发现扩展到相对非道德话题上，证明双面信息可以鼓励那些由各种非道德态度强度衡量指标所表明的持有强烈态度的人，对相反立场更加开放。研究1针对态度强度的四个指标（例如确定性）证明了这一点。随着一个人态度强度的增加，双面信息相对于单面沟通的相对有效性也增加。这是由对说话者承认自己观点的感知赞赏所介导的。研究2在一项预注册实验中重复了这一发现。研究3从概念上重复了这一发现，并将其扩展到基于政治身份持有态度的人。最后，获得了证据支持感知赞赏（而非来源评估）是这种交互效应的关键驱动因素。
