Evaluation of Clear Speech to Enhance Multimedia eHealth

说明（申请人提供）：本项目的重点是音频叙述的特点，以老年人和其他人理解电子健康中的多媒体，以癌症预防为主题。多媒体是一种越来越流行的方法，用于在网络上和通过CD/DVD呈现癌症和其他健康信息。然而，几乎没有健康素养的研究有效的策略设计的多媒体。例如，在NIH的基于研究的网页设计和可用性指南中发布的187个设计指南中，只有4个指南简要提到了多媒体。该项目将解决这一重要但研究不足的卫生知识普及领域。多媒体演示对不同人群的影响不同。许多老年人由于影响语音处理的听力敏感性和认知的变化而难以理解语音。电子健康多媒体中通常使用的对话式语音对于许多人来说非常难以理解。因此，对健康决策过程至关重要的信息可能会被遗漏。当说话者故意试图通过缓慢而清晰地说话来提高可懂度时，但不夸张地产生的语音被称为“清晰语音”。在过去的20年里，清晰的语音风格在许多研究中一再被证明可以提高语音的可懂度。该项目的目标是系统地评估清晰语音作为老年人电子保健多媒体叙述技术的有效性，并通过指导方针传播结果。本研究的总体设计为混合因子，年龄作为受试者间变量，任务表现作为受试者内变量。研究将分为可懂度、理解、保持和偏好测试。40名老年人和20名年轻人将参加该项目。清晰的语音叙述预计将被证明是一个具有成本效益的战略，以显着提高数百万消费者的能力，以获得，处理和理解健康信息中提出的电子健康计划。

DESCRIPTION (provided by applicant): This project focuses on the characteristics of audio narration for understanding multimedia in eHealth by seniors and others, using cancer prevention as the subject matter. Multimedia is an increasingly popular method for presenting cancer and other health information on the web and via CD/DVD. However, there is virtually no health literacy research on effective strategies for the design of multimedia. For example, in the 187 design guidelines published in NIH's Research-Based Web Design and Usability Guidelines, multimedia is briefly mentioned in just 4 guidelines. This project will address this significant yet understudied area of health literacy. Segments of the population are affected differentially by a multimedia presentation. Many older adults experience difficulties understanding speech due to changes in hearing sensitivity and cognition that affect speech processing. The conversational style of speech that is typically used in eHealth multimedia is very difficult for many persons to understand. Thus information that is critical to health decision processes may be missed. The speech produced when a speaker intentionally tries to improve intelligibility by speaking slowly and clearly, but without exaggeration, is called "Clear Speech". Clear Speech style has been repeatedly shown to enhance intelligibility of speech in numerous studies over the past 20 years. The goal of this project is to systematically evaluate the effectiveness of Clear Speech as a narration technique for eHealth multimedia for seniors and to disseminate the results through guidelines. The overall design of the study will be a mixed factorial with age as a between-subject variable and performance on tasks as a within-subject variable. The study will be divided into intelligibility, comprehension, retention and preference testing. 40 senior and 20 younger adults will participate in the project. Clear Speech narration is expected to be proven to be a cost-effective strategy to significantly enhance the ability of millions of consumers to obtain, process, and understand health information presented in eHealth programs.