Randomized Trial Evaluating Targeted Photographic Health Communication Messages in Three Stigmatized Populations: Physically-Disabled, Senior, and Overweight/Obese Individuals.
Randomized Trial Evaluating Targeted Photographic Health Communication Messages in Three Stigmatized Populations: Physically-Disabled, Senior, and Overweight/Obese Individuals.
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DOI：
10.1080/10810730.2018.1536731
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发表时间：
2018
影响因子：
4.4
通讯作者：
Buller DB
中科院分区：
文献类型：
--
作者：
Buller MK;Andersen PA;Bettinghaus EP;Liu X;Slater MD;Henry K;Fluharty L;Fullmer S;Buller DB
同质性原则，即人们感知到的相似性会产生积极的反应，是一种跨文化的全球现象。描绘与目标人群相似的模型的照片可以改善健康沟通的预测已经过测试。从 GfK 的 Knowledge Panel® 中选出了三个具有全国代表性的残疾人、老年人或超重/肥胖成年人样本 (n=1,796)。参与者阅读一条促进身体活动和改善饮食的信息，并对行为意图、结果和自我效能期望以及识别的评估做出回应。消息中包含来自库存照片服务的照片与为匹配这三个人群的研究项目创建的照片，即真实健康照片 (RHP)。结构方程模型证实，在身体残疾和超重/肥胖样本中，与人群相匹配的 RHP 会增加由识别介导的行为意图 (p<0.05)。仅包含一半匹配 RHP 图像的消息具有相同的积极间接影响 (p<0.05)。健康信息中的匹配视觉图像通过利用同质性和识别过程提高了有效性。健康教育者应该利用这种固有的、进化的、延伸到健康状况以及种族和民族的生物现象。为了获得最佳效果，并非所有显示的人物都需要与目标受众相似，从而减少了显示不同类型的不同人物时的后勤困难。
The homophily principle, that perceived similarities among people produce positive reactions, is a cross-cultural, global phenomenon. The prediction that photographs depicting models similar to the target population improve health communication was tested. Three nationally-representative samples (n=1,796) of adults who are disabled, seniors, or considered overweight/obese were selected from GfK’s Knowledge Panel®. Participants read a message promoting physical activity and improved diets and responded to assessments of behavioral intentions, outcome and self-efficacy expectations, and identification. Photographs from a stock photograph service versus photographs created for the research project to match the three populations, Real Health Photos (RHP), were included in the message. Structural equation modeling confirmed that RHP which matched the population increased behavioral intentions mediated by identification (p<0.05) in the physically-disabled and overweight/obese samples. Messages with only half of the matched RHP images had these same positive indirect effects (p<0.05). Matched visual images in health messages improved effectiveness by capitalizing on the homophily and identification processes. Health educators should leverage this hardwired, evolutionary, biological phenomena that extends to health status as well as race and ethnicity. For optimal effects, not all persons shown need to be homophilous to the target audience, reducing logistical difficulties in showing diverse persons of various types.
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