杂志文章@ 14388871 % JMIR出版物有限公司监测饮食摄入卡塔尔世界杯8强波胆分析量和体育活动电子:基于移动的生态瞬间评估工具的可行性、可用性和生态有效性% a Spook,Jorinde Eline % a Paulussen,Theo % a Kok,Gerjo % a Van Empelen,Pepijn %+马斯特里赫特大学工作与社会心理系心理与神经科学学院，马斯特里赫特大学，6200MD，荷兰，31 888661715，jorinde.spook@tno.nl %K基于移动的生态瞬时评估(mEMA) %K可行性%K可用性%K生态有效性%K饮食摄入量%K身体活动%D 2013 %7 24.09.2013 %9原始论文%J J医学互联网Res %G英文%X背景:尽管对复杂生活方式行为的研究越来越多(例如，饮食摄入量[DI]和身体活动[PA])，但由于缺乏合适的方法，对这些行为的监测一直受到阻碍。一个可能的解决方案是基于移动的生态瞬间评估(mEMA)，它使研究人员能够通过智能手机应用程序实时收集参与者的状态数据。但是，为了提高mEMA的有效性，还需要对其可行性、可用性和生态有效性进行预测和管理。目的:考察在荷兰职业教育学生中使用mEMA应用程序(app)进行DI和PA的可行性、可用性和生态有效性。方法:30名学生连续7天参加mEMA研究。他们在智能手机上下载了mEMA应用程序。mEMA应用程序的可行性和可用性在参与7天后通过完成在线评估进行评估。生态有效性是通过评估mEMA应用程序的内容与正在测试的现实世界环境的接近程度来衡量的，方法是通过几个选择题。 Results: Compliance rates, as registered by the mEMA app, declined 46% over a seven-day period, while self-reported compliance, as measured with an online evaluation questionnaire afterwards, indicated a smaller decrease in compliance (29%). The students evaluated the mEMA app as feasible and usable. Ecological validity analyses showed that all DI and almost all PA multiple-choice options were covered with the compound response categories. Conclusions: The mEMA app offers the opportunity to assess complex health behaviors (eg, DI and PA) in real-time settings, in which specifically routinized behaviors are involved. However, the mEMA app faced several challenges that needed to be overcome in order to improve its validity. Overall, the present study showed that the mEMA app is a usable and ecologically valid tool to measure DI and PA behaviors among vocational education students, but compliance is still limited. %M 24067298 %R 10.2196/jmir.2617 %U //www.mybigtv.com/2013/9/e214/ %U https://doi.org/10.2196/jmir.2617 %U http://www.ncbi.nlm.nih.gov/pubmed/24067298