Understanding the landscape of web-based medical misinformation about vaccination

被引:7
|
作者
Wolfe, Christopher R. [1 ]
Eylem, Andrew A. [1 ]
Dandignac, Mitchell [1 ]
Lowe, Savannah R. [1 ]
Weber, Margo L. [1 ]
Scudiere, Laura [2 ]
Reyna, Valerie F. [3 ]
机构
[1] Miami Univ, Dept Psychol, Oxford, OH 45056 USA
[2] Marathon Cty Hlth Dept, Wausau, WI USA
[3] Cornell Univ, Ithaca, NY 14850 USA
基金
美国国家科学基金会;
关键词
Inoculation information; Google search terms; Fuzzy trace theory; Disinformation; Health information; Psycholinguistic properties of websites; MYSIDE BIAS; DECISIONS; ARGUMENTATION; MEMORY;
D O I
10.3758/s13428-022-01840-5
中图分类号
B841 [心理学研究方法];
学科分类号
040201 ;
摘要
Given the high rates of vaccine hesitancy, web-based medical misinformation about vaccination is a serious issue. We sought to understand the nature of Google searches leading to medical misinformation about vaccination, and guided by fuzzy-trace theory, the characteristics of misinformation pages related to comprehension, inference-making, and medical decision-making. We collected data from web pages presenting vaccination information. We assessed whether web pages presented medical misinformation, had an overarching gist, used narrative, and employed emotional appeals. We used Search Engine Optimization tools to determine the number of backlinks from other web pages, monthly Google traffic, and Google Keywords. We used Coh-Metrix to measure readability and Gist Inference Scores (GIS). For medical misinformation web pages, Google traffic and backlinks were heavily skewed with means of 138.8 visitors/month and 805 backlinks per page. Medical misinformation pages were significantly more likely than other vaccine pages to have backlinks from other pages, and significantly less likely to receive at least one visitor from Google searches per month. The top Google searches leading to medical misinformation were "the truth about vaccinations," "dangers of vaccination," and "pro con vaccines." Most frequently, pages challenged vaccine safety, with 32.7% having an overarching gist, 7.7% presenting narratives, and 17.3% making emotional appeals. Emotional appeals were significantly more common with medical misinformation than other high-traffic vaccination pages. Misinformation pages had a mean readability grade level of 11.5, and a mean GIS of - 0.234. Low GIS scores are a likely barrier to understanding gist, and are the "Achilles' heel" of misinformation pages.
引用
收藏
页码:348 / 363
页数:16
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