Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208 , United States.
Health Place. 2013 May;21:65-9. doi: 10.1016/j.healthplace.2013.01.008. Epub 2013 Feb 4.
There is a lack of validated and reliable instruments on perception of the food environment, in particular for rural environments. We estimated the test-retest reliability of a questionnaire assessing perceptions of the food environment. A total of 101 primary food shoppers in South Carolina were interviewed by phone to assess their perceptions of the food environment and presence of different food outlet types in their neighborhood. The survey was repeated approximately one month after the initial administration. The intra-class correlation (ICC) and Phi coefficient are reported as measures of reliability. The majority of questions on perceptions of the neighborhood food environment appear highly reliable (ICCs range from 0.55 to 0.71), including the 3-item scale on healthy food availability (ICC 0.71). Compared to participants in rural areas, those in urban areas demonstrated better reliability for questions on opportunities to purchase fast food and perceived presence of a supercenter. More research is needed to evaluate potential rural-urban differences in reliability.
对于农村环境，缺乏经过验证和可靠的食品环境感知工具。我们评估了评估食品环境感知的问卷的重测信度。南卡罗来纳州共有 101 名初级食品购物者通过电话接受采访，以评估他们对食品环境的看法以及他们所在社区不同食品店类型的存在情况。调查大约在初始管理后一个月重复进行。内类相关系数（ICC）和 Phi 系数被报告为可靠性的衡量标准。关于对邻里食品环境感知的大多数问题似乎非常可靠（ICC 范围从 0.55 到 0.71），包括关于健康食品供应的 3 项量表（ICC 为 0.71）。与农村地区的参与者相比，城市地区的参与者在购买快餐的机会和感知到超级中心存在方面的问题上表现出更好的可靠性。需要进一步研究来评估农村与城市之间可靠性的潜在差异。
