Website quality indicators for consumers.
Website quality indicators for consumers.
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DOI：
10.2196/jmir.7.5.e55
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发表时间：
2005-11-15
影响因子：
7.4
通讯作者：
Christensen, Helen
中科院分区：
文献类型：
--
作者：
Griffiths, Kathleen M;Christensen, Helen
评级工具 DISCERN 旨在供没有内容专业知识的消费者使用来评估健康信息的质量。有一些证据表明，卫生专业人员应用时，DISCERN 可能是基于证据的网站质量的有效指标。然而，尚不清楚该工具在消费者使用时是否是基于证据的质量的有效衡量标准。由于它是一种冗长的仪器，需要进行使用培训，DISCERN 对于普通消费者来说可能不切实际。因此，探索其他更简单的网站质量潜在指标（例如 Google PageRank）的有效性非常重要。本研究旨在确定 (1) DISCERN 工具是否是针对未接受特定心理健康培训的消费者的基于证据的 Web 内容质量的有效指标，以及 (2) Google PageRank 是否是通过基于证据的黄金标准衡量的网站内容质量的指标。这是一项由消费者和健康专业评估员对抑郁症网站进行的横断面调查。主要结果指标包括 (1) 网站特征、(2) 根据循证抑郁症指南衡量的循证内容质量、(3) DISCERN 分数、(4) Google PageRank 和 (5) 用户满意度。对于消费者 (r = 0.62，P = .001) 和卫生专业人员 (r = 0.80，P < .001)，基于证据的质量评级与平均 DISCERN 评级之间存在显着关联。消费者和健康专业人士的 DISCERN 评级显着相关 (r = 0.77, P < .001)。基于证据的质量得分与 Google PageRank 相关（r = 0.59，P = .002）。然而，DISCERN 分数与用户满意度之间的相关性高于 Google PageRank 与用户满意度之间的相关性。当专家或消费者使用时，DISCERN 有潜力作为内容质量的指标。 Google PageRank 显示出作为自动质量指标的一些前景。
The rating tool DISCERN was designed for use by consumers without content expertise to evaluate the quality of health information. There is some evidence that DISCERN may be a valid indicator of evidence-based website quality when applied by health professionals. However, it is not known if the tool is a valid measure of evidence-based quality when used by consumers. Since it is a lengthy instrument requiring training in its use, DISCERN may prove impractical for use by the typical consumer. It is therefore important to explore the validity of other simpler potential indicators of site quality such as Google PageRank. This study aimed to determine (1) whether the instrument DISCERN is a valid indicator of evidence-based Web content quality for consumers without specific mental health training, and (2) whether Google PageRank is an indicator of website content quality as measured by an evidence-based gold standard. This was a cross-sectional survey of depression websites using consumer and health professional raters. The main outcome measures were (1) site characteristics, (2) evidence-based quality of content as measured by evidence-based depression guidelines, (3) DISCERN scores, (4) Google PageRank, and (5) user satisfaction. There was a significant association between evidence-based quality ratings and average DISCERN ratings both for consumers (r = 0.62, P = .001) and health professionals (r = 0.80, P < .001). Consumer and health professional DISCERN ratings were significantly correlated (r = 0.77, P < .001). The evidence-based quality score correlated with Google PageRank (r = 0.59, P = .002). However, the correlation between DISCERN scores and user satisfaction was higher than the correlation between Google PageRank and user satisfaction. DISCERN has potential as an indicator of content quality when used either by experts or by consumers. Google PageRank shows some promise as an automatic indicator of quality.