What works best: Objective statistics or a personal testimonial? An assessment of the persuasive effects of different types of message evidence on risk perception
What works best: Objective statistics or a personal testimonial? An assessment of the persuasive effects of different types of message evidence on risk perception
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DOI：
10.1037/0278-6133.27.1.110
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发表时间：
2008-01-01
影响因子：
4.2
通讯作者：
Vet, Raymond
中科院分区：
文献类型：
--
作者：
de Wit, John B. F.;Das, Enny;Vet, Raymond
目的：在一项实验性的在线研究中，我们比较了不同类型的说服性证据在促进接受个人健康风险方面的效果。设计：118名男男性接触者(MSM)是通过一系列网站招募的，他们被随机分配到4种情况之一(2个实验和2个对照)：叙事证据(即个人账户)、统计证据(即抽象的流行数据)、仅仅是风险增加的断言，以及没有风险信息。主要观察指标：在增加男男性行为者感染乙肝病毒的感知风险方面，叙述性证据预期比统计证据更有效。结果与结论：叙事证据呈现后，个人风险知觉和接种意愿最高，风险知觉在信息证据类型对意向的影响中起中介作用。我们认为，叙述性证据有效地促进了个人风险感，因为它较少受到防御性信息处理的影响，而防御性信息处理是由于对重要自我信念的威胁，似乎是健康风险沟通中固有的。
Objective: In an experimental online study we compared the effects of different types of persuasive evidence in promoting the acceptance of a personal health risk. Design: 118 men who have sex with men (MSM) at-risk for infection with the hepatitis B virus (HBV) were recruited via a range of websites and randomly assigned to one of 4 conditions (2 experimental and 2 control): narrative evidence (i.e., a personal account), statistical evidence (i.e., abstract prevalence data), mere assertion of increased risk, and no risk information. Main Outcome Measures: Narrative evidence was expected to more effective than statistical evidence in increasing MSM's perceived risk of infection with HBV an intention to obtain vaccination. Results and Conclusion: As predicted, perceptions of personal risk and intention to obtain vaccination against HBV were highest after presentation of narrative evidence, and risk perception mediated the effect of type of message evidence on intention. We propose that narrative evidence effectively promotes a sense of personal risk because it is less affected by defensive message processing resulting from the threat to important self-beliefs that seems inherent in health risk communication.