University of Göttingen, Robert-Koch-Str. 40, D-37099, Göttingen, Germany.
J Dent Educ. 2011 Dec;75(12):1558-68.
The objective of this study was to systematically assess the informational value, intention, source, and bias of videos related to dentistry available on the video-sharing Internet platform YouTube. YouTube (www.youtube.com) was searched for videos related to dentistry, using the system-generated sorts "by relevance" and "most viewed" and two categories (All and Education). Each of the first thirty results was rated by two assessors filling out a questionnaire for each (total: 120). The data were subjected to statistical analysis using Cohen's kappa, Pearson's correlation coefficient tau, Mann-Whitney U-tests, and a nonparametric three-way ANOVA, including an analysis of the interaction between the sorting and category effect, with an α-level of 5 percent. The scan produced 279,000 results in the category All and 5,050 in the category Education. The analysis revealed a wide variety of information about dentistry available on YouTube. The purpose of these videos includes entertainment, advertising, and education. The videos classified under Education have a higher degree of usefulness and informational value for laypersons, dental students, and dental professionals than those found in a broader search category. YouTube and similar social media websites offer new educational possibilities that are currently both underdeveloped and underestimated in terms of their potential value. Dentists and dental educators should also recognize the importance of these websites in shaping public opinion about their profession.
本研究旨在系统评估视频分享互联网平台 YouTube 上与牙科相关的视频的信息价值、意图、来源和偏差。使用系统生成的“相关度最高”和“浏览量最高”排序以及“全部”和“教育”两个类别，在 YouTube（www.youtube.com）上搜索与牙科相关的视频。前三十个结果中的每一个都由两名评估员进行评分，为每个视频填写一份问卷（总计：120 个）。使用 Cohen's kappa、Pearson's correlation coefficient tau、Mann-Whitney U 检验和非参数三向方差分析对数据进行了统计分析，包括排序和类别效果之间的交互分析，α 值为 5%。在“全部”类别中扫描出 279,000 个结果，在“教育”类别中扫描出 5,050 个结果。分析结果显示，YouTube 上提供了大量有关牙科的信息。这些视频的目的包括娱乐、广告和教育。与更广泛的搜索类别相比，被归类为“教育”的视频对非专业人士、牙科学生和牙科专业人员具有更高的有用性和信息价值。YouTube 和类似的社交媒体网站提供了新的教育可能性，目前这些可能性在其潜在价值方面既未得到充分开发，也未得到充分重视。牙医和牙科教育者也应该认识到这些网站在塑造公众对其职业的看法方面的重要性。
