Interactive Web-Based Computerized Food Portion Tutorial

基于网络的交互式计算机化食品部分教程

• 批准号: 6693737
• 负责人: WILLIAM T. RILEY
• 金额: $ 38.41万
• 依托单位: PERSONAL IMPROVEMENT COMPUTER SYSTEMS
• 依托单位国家: 美国
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-04-15 至 2005-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6693737
• 关键词: DVD /CD ROM; Internet; clinical research; computer assisted instruction; computer human interaction; computer system design /evaluation; educational resource design /development; human subject; interactive multimedia; nutrient intake activity; nutrition education; nutrition related tag; questionnaires; videotape /videodisc

DESCRIPTION (provided by applicant): The primary purpose of this Phase II project is to further develop and evaluate a computer-based Food Portion Tutorial to improve food portion estimation among a variety of food types. Specific aims of the project are to revamp the Computerized Food Portion Tutorial (CFPT) developed in Phase I as per feedback from nutritionists and end-users, expand the database of pictures, integrate portion sizes with nutritional information and provide dietary data tailored to the end-user, link the database of CFPT pictures with a validated food frequency questionnaire to develop a Pictorial Food Frequency Questionnaire (PFFQ) module, and offer the CFPT in a CD-rom version for expanded accessibility. Usability evaluations of both the Computerized Food Portion Tutorial and the Pictorial Food Frequency Questionnaire with dietary professionals will be conducted to ensure accuracy and appropriateness of program content and design. The finalized tutorial module will be evaluated in an efficacy trial to determine whether exposure to the tutorial assists users by improving food portion estimation accuracy. A validity trial of the Pictorial Food Frequency Questionnaire (PFFQ) component will also be conducted, comparing the PFFQ with a standard food frequency questionnaire, a 4-day food record, and multiple 24-hour recalls. Based on results as well as feedback from both end users and nutritionists, proposed modifications will be developed for a Phase III commercial product.

描述（由申请人提供）：这个第二阶段项目的主要目的是进一步开发和评估基于计算机的食物份量教程，以改进各种食物类型的食物份量估计。该项目的具体目标是根据营养学家和最终用户的反馈，改进第一阶段开发的计算机化食物份量教程（CFPT），扩展图片数据库，将份量与营养信息相结合，并为最终用户提供量身定制的饮食数据，将CFPT图片数据库与经过验证的食物频率问卷联系起来，开发图像化食物频率问卷（PFFQ）模块。并提供CFPT的CD-rom版本，以扩大可访问性。将与饮食专家一起对计算机化食物份量教程和图片食物频率问卷进行可用性评估，以确保节目内容和设计的准确性和适当性。最终的教程模块将在功效试验中进行评估，以确定接触教程是否有助于用户提高食物分量估计的准确性。还将对图片食物频率问卷（PFFQ）部分进行效度试验，将PFFQ与标准食物频率问卷、4天食物记录和多次24小时召回进行比较。根据结果以及最终用户和营养学家的反馈，建议的修改将用于III期商业产品。