Calibration of the Online Youth Activity Profile for School-Based Evaluations

校本评估在线青少年活动概况的校准

• 批准号: 8771160
• 负责人: Greg J Welk
• 金额: $ 20.26万
• 依托单位: IOWA STATE UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-07-01 至 2016-06-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/8771160
• 关键词: Address; Adoption; Age; Algorithms; Behavior; Behavioral Sciences; Calibration; Computer software; Country; Data; Error Sources; Evaluation; Gender; Goals; Grant; Guidelines; Institutes; Measures; Methods; Modeling; Monitor; Online Systems; Output; Participant; Patient Self-Report; Pattern; Physical Education; Physical Fitness; Physical activity; Pilot Projects; Population Surveillance; Printing; Procedures; Protocols documentation; Public Health; Randomized; Recruitment Activity; Research; Sampling; Schools; Seasons; Solutions; System; Techniques; Testing; Time; Validity and Reliability; Work; Youth; base; cost effective; design; fitness; improved; innovation; instrument; longitudinal design; metropolitan; programs; public health relevance; public health research; sedentary; tool; week trial

DESCRIPTION (provided by applicant): The proposed study will evaluate the reliability and validity of a calibrated self-report instrument called the Youth Activity Profile (YAP) for assessig youth physical activity (PA) and sedentary behavior (SB). Considerable work has been done to improve objective monitoring techniques but the systematic use of calibration procedures provides a way to improve the utility of self- report instruments for research and public health surveillance. With appropriate calibration, it is possible to convert self-reported PA and SB data into estimates that correspond to more accurate values obtained using objective measures. This would make it possible to obtain accurate, group level estimates of PA and SB using less expensive feasible methods. Preliminary calibration of the YAP demonstrates that it can produce accurate group estimates of PA and predict compliance with established public health guidelines for PA. The proposed study will build on this work by calibrating and evaluating web-based versions of the YAP that will enable broader adoption in school based programming and youth research. The 3 independent aims will allow us to continue our systematic refinements of this promising public health tool. In Aim 1 we will determine the reliability and equivalence of th three different versions of the YAP (Print, Online, and Online Game). We will administer the 3 different versions to intact classrooms from 12 different schools (36 classrooms total) on two occasions (1-2 weeks apart) to examine the test-retest reliability and equivalence of the alternative formats. In Aim 2 we will develop and test new calibration algorithms for use with the web-based versions of the YAP. Data will be collected with the online version (using our established protocol) in two regionally distinct metropolitan school systems (Des Moines and Dallas) across a full academic school year to increase the generalizability of the algorithms. In Aim 3 we will test the validity and equivalence of the web-based versions of the YAP through a large participatory research network involving over 1000 schools (NFL PLAY 60 FITNESSGRAM(R) Partnership Project). Construct validity will be evaluated for both the Online and Online Game versions by examining correlations with group level estimates of physical fitness from the FITNESSGRAM battery. Age and gender patterns of PA from the Online and Online Game versions will be evaluated for equivalence and, if necessary, output from the Game version will be standardized using a test- equating step. The proposed study will systematically evaluate the utility of the web-based formats of the YAP for school-based research on PA and SB. With additional refinement, these tools can facilitate the systematic evaluation of youth PA and SB patterns across the country.

描述（由申请人提供）：拟议的研究将评估一种称为青少年活动概况（YAP）的校准自我报告工具的可靠性和有效性，该工具用于评估青少年的身体活动（PA）和久坐行为（SB）。为改进客观监测技术已经做了大量工作，但校准程序的系统使用提供了一种提高自我报告仪器在研究和公共卫生监测中的实用性的方法。通过适当的校准，可以将自我报告的 PA 和 SB 数据转换为与使用客观测量获得的更准确值相对应的估计值。这将使得使用较便宜的可行方法获得准确的、群体水平的 PA 和 SB 估计成为可能。 YAP 的初步校准表明，它可以对 PA 进行准确的群体估计，并预测是否符合既定的 PA 公共卫生指南。拟议的研究将通过校准和评估 YAP 的网络版本来建立在这项工作的基础上，这将使学校规划和青年研究得到更广泛的采用。这三个独立的目标将使我们能够继续系统地完善这一有前景的公共卫生工具。在目标 1 中，我们将确定 YAP 的三个不同版本（印刷版、在线版和在线游戏）的可靠性和等效性。我们将在 12 所不同学校（总共 36 个教室）的完整教室中两次（相隔 1-2 周）实施 3 个不同版本，以检查替代格式的重测可靠性和等效性。在目标 2 中，我们将开发和测试新的校准算法，以便与基于网络的 YAP 版本一起使用。数据将通过在线版本（使用我们既定的协议）在两个地区不同的大都市学校系统（得梅因和达拉斯）整个学年中收集，以提高算法的普遍性。在目标 3 中，我们将通过涉及 1000 多所学校的大型参与性研究网络（NFL PLAY 60 FITNESSGRAM(R) 合作伙伴项目）来测试 YAP 网络版本的有效性和等效性。通过检查 FITNESSGRAM 电池组身体健康水平估计值的相关性，将评估在线和在线游戏版本的构造有效性。将评估在线和在线游戏版本中 PA 的年龄和性别模式的等效性，并且如有必要，将使用测试等同步骤对游戏版本的输出进行标准化。拟议的研究将系统地评估 YAP 网络格式对于 PA 和 SB 校本研究的效用。经过进一步完善，这些工具可以促进对全国青年 PA 和 SB 模式进行系统评估。