Department of Psychology, Catholic University of Milan.
Health Commun. 2020 Apr;35(4):475-482. doi: 10.1080/10410236.2019.1567444. Epub 2019 Jan 24.
Previous research has shown that messages aimed at reducing red meat intake often do not have the expected effect. In the present study, we tested whether prefactual ("If… then") or factual messages focused on health or wellbeing concerns have different persuasive effects depending on the recipient's level of eating self-efficacy. Young adult participants ( = 247) completed a questionnaire measuring their eating self-efficacy and current red meat consumption. They were then presented with a prefactual or factual version of a message describing the possible negative impact of excessive red meat consumption on either health or wellbeing. After reading the message participants reported their involvement with the message and intention to eat red meat in the future. Results showed that prefactual wellbeing messages and factual health messages trigger participants' involvement and, in turn, reduce their intention to eat red meat more than the other message combinations. Eating self-efficacy moderates these effects, with factual health messages persuading people with high self-efficacy and prefactual wellbeing messages persuading also receivers with an average level of self-efficacy. Discussion focuses on which message frames can be more effective in promoting a reduction in red meat consumption in a wider population.
先前的研究表明,旨在减少红肉摄入量的信息通常没有预期的效果。在本研究中,我们测试了基于健康或幸福关注的前置事实(“如果……那么”)或事实信息是否会根据收件人的饮食自我效能感水平产生不同的说服力。年轻成年参与者(n=247)完成了一份问卷,测量他们的饮食自我效能感和当前的红肉消费。然后,他们阅读了一个描述过量摄入红肉对健康或幸福可能产生负面影响的前置事实或事实信息版本。阅读信息后,参与者报告了他们对信息的参与度以及未来食用红肉的意图。结果表明,前置事实的幸福信息和事实的健康信息引发了参与者的参与度,从而减少了他们食用红肉的意图,比其他信息组合更有效。饮食自我效能感调节了这些影响,事实性的健康信息对高自我效能感的人更有说服力,而前置事实的幸福信息也对自我效能感平均水平的接收者有说服力。讨论的重点是哪些信息框架可以在更广泛的人群中更有效地促进减少红肉消费。