@Article{信息:doi 10.2196 / / jmir。1097，作者=“哈里斯，彼得R和沉默，伊丽莎白和布里格斯，帕梅拉”，标题=“可信度相关设计线索对基于web的关于酒精导致乳腺癌风险的信息的反应的影响:随机对照试验”，期刊=“J医学互联网研究”，年=“2009”，月=“8”，日=“25”，卷=“11”，数=“3”，页=“e37”，关键词=“酒精;乳腺癌的风险;健康风险信息;互联网;背景:互联网网站通常包含视觉设计元素，这些元素与所呈现的健康信息的质量无关，但可能影响可信度判断和对健康建议的响应。为了实验评估这些设计元素或可信度线索的影响，我们让每周饮酒水平不同的女性接触一个网站，该网站包含有关健康风险(乳腺癌)的高质量但令人不快的信息。这些信息与与信息内容无关的正面或负面可信度线索一起呈现。目的:我们探索了四个研究问题:(1)线索是否影响了女性对网站的参与度?(2)它们是否影响了女性在认知和情感上的反应? (3) Did they influence whether the women subsequently acted on the advice? (4) Did the impact of the cues vary with how much alcohol the women reported drinking? Method: A total of 85 women were randomly assigned to view one of two versions of a website containing the same high-quality content but different cues. One version had positive credibility cues (trustmarks), the other had negative ones (adverts, pharmaceutical sponsorship, and a donation button). Objective measures included visual attention (using eye-tracking equipment), time studying the material, and recall. Subjective measures included cognitive and affective responses and intention to change. Measures of subsequent behavior were taken 1 week later. Results: First, the cues did not affect how long the women spent on the site or how long they spent reading the text. However, women in the negative cues condition spent more time looking at a donation button than those in the positive cues condition spent looking at a TRUSTe seal ($\beta$ = −.43, P < .001) but less time looking at a logo ($\beta$ = .43, P < .001) or at certain other features of the site. Those in the negative cues condition also recalled more site content ($\beta$ = −.22, P = .048). Second, there were no effects of the cues on any of the measures of cognition, affect, vulnerability, or intentions. However, third, at follow-up, the positive cues had promoted greater alcohol reduction than the negative cues among those women who had previously reported drinking more heavily ($\beta$ = −.22, P = .02). So, fourth, the responses to the cues did vary with how much alcohol the women typically drank. Conclusions: Content-irrelevant images and logos can influence the behavioral response to quality health-risk information. These effects may be subtle, changing with time. ", issn="1438-8871", doi="10.2196/jmir.1097", url="//www.mybigtv.com/2009/3/e37/", url="https://doi.org/10.2196/jmir.1097", url="http://www.ncbi.nlm.nih.gov/pubmed/19709989" }