Evaluation of Clear Speech to Enhance Multimedia eHealth

项目描述（由申请人提供）：本项目以预防癌症为主题，重点研究老年人和其他人在电子健康中理解多媒体的音频叙述特点。多媒体是一种越来越流行的方法，通过网络和CD/DVD来展示癌症和其他健康信息。然而，关于多媒体设计的有效策略的健康素养研究几乎没有。例如，在美国国立卫生研究院发布的《基于研究的网页设计和可用性指南》的187条设计指南中，多媒体仅在4条指南中被简要提及。该项目将解决卫生知识普及这一重要但尚未得到充分研究的领域。多媒体演示对不同人群的影响是不同的。由于听力敏感性和认知的变化影响了言语处理，许多老年人在理解言语方面存在困难。电子健康多媒体中典型的会话式语言对许多人来说很难理解。因此，可能会错过对卫生决策过程至关重要的信息。说话者有意缓慢而清晰地说话，但不夸张地提高可理解性，这种言语被称为“清晰的言语”。在过去20年的大量研究中，清晰的言语风格一再被证明可以提高言语的可理解性。本项目的目的是系统地评估清晰语音作为老年人电子健康多媒体叙事技术的有效性，并通过指南传播结果。研究的总体设计将是一个混合因子，年龄作为受试者间变量，任务表现作为受试者内变量。研究将分为可理解性、理解性、记忆性和偏好性测试。40名老年人和20名年轻人将参与该项目。清晰的语音叙述有望被证明是一种具有成本效益的策略，以显着提高数百万消费者获取，处理和理解电子健康计划中呈现的健康信息的能力。

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.