Cross-validation of the factorial structure of the Neighborhood Environment Walkability Scale (NEWS) and its abbreviated form (NEWS-A)
Cross-validation of the factorial structure of the Neighborhood Environment Walkability Scale (NEWS) and its abbreviated form (NEWS-A)
复制标题
DOI：
10.1186/1479-5868-6-32
复制
发表时间：
2009-06-09
影响因子：
8.7
通讯作者：
Sallis, James F.
中科院分区：
文献类型：
--
作者：
Cerin, Ester;Conway, Terry L.;Sallis, James F.
背景：社区环境步行性量表(NEWS)及其缩写形式(NEWS-A)评估被认为影响身体活动的感知环境属性。对华盛顿州西雅图的样本进行了多水平验证性因素分析(MCFA)，结果表明，在被调查者层面上，新闻和新闻-A的因素可分析条目分别测量了11个和10个感知邻里环境的结构。在人口普查区块组(美国人口普查局将其用作人口普查区域的一个子单位)层面，MCFA得出了新闻和新闻的五个因素-A。本研究的目的是在与原始验证研究不同的地理位置和人群中交叉验证新闻和新闻-A的个人和区块组级测量模型。方法：从马里兰州巴尔的摩地区的16个选定社区(116个人口普查区块组)招募912名成年人。社区根据其社会经济地位和使用地理信息系统测量的与交通相关的步行水平进行分层。参与者自行完成了这条新闻。结果：由11个(新闻)和10个(新闻-A)相关因素组成的原始个体水平测量模型的因素效度得到了充分的支持。新闻和新闻-A最初的区块组级测量模型显示出与数据的不匹配，需要进行大量修改。这些措施包括将建筑美学和犯罪安全结合为一个因素；将自然美学和建筑美学分离为两个因素；以及对于新闻A，人行道/步行路线的存在与其他步行基础设施的分离。结论：本研究为新闻和新闻A的个人水平测量模型在美国不同城市地理位置的推广提供了支持。建议根据新闻和新闻-A的个体水平测量模型进行评分，该模型相对稳定，与城市规划和交通领域常用的结构相对应。然而，在国际和多文化研究中使用这些工具之前，需要在不同的非英语国家和人群中进行进一步的验证工作。
Background: The Neighborhood Environment Walkability Scale (NEWS) and its abbreviated form (NEWS-A) assess perceived environmental attributes believed to influence physical activity. A multilevel confirmatory factor analysis (MCFA) conducted on a sample from Seattle, WA showed that, at the respondent level, the factor-analyzable items of the NEWS and NEWS-A measured 11 and 10 constructs of perceived neighborhood environment, respectively. At the census blockgroup (used by the US Census Bureau as a subunit of census tracts) level, the MCFA yielded five factors for both NEWS and NEWS-A. The aim of this study was to cross-validate the individual- and blockgroup-level measurement models of the NEWS and NEWS-A in a geographical location and population different from those used in the original validation study.Methods: A sample of 912 adults was recruited from 16 selected neighborhoods (116 census blockgroups) in the Baltimore, MD region. Neighborhoods were stratified according to their socio-economic status and transport-related walkability level measured using Geographic Information Systems. Participants self-completed the NEWS. MCFA was used to cross-validate the individual- and blockgroup-level measurement models of the NEWS and NEWS-A.Results: The data provided sufficient support for the factorial validity of the original individual- level measurement models, which consisted of 11 (NEWS) and 10 (NEWS-A) correlated factors. The original blockgroup-level measurement model of the NEWS and NEWS-A showed poor fit to the data and required substantial modifications. These included the combining of aspects of building aesthetics with safety from crime into one factor; the separation of natural aesthetics and building aesthetics into two factors; and for the NEWS-A, the separation of presence of sidewalks/walking routes from other infrastructure for walking.Conclusion: This study provided support for the generalizability of the individual- level measurement models of the NEWS and NEWS-A to different urban geographical locations in the USA. It is recommended that the NEWS and NEWS-A be scored according to their individual- level measurement models, which are relatively stable and correspond to constructs commonly used in the urban planning and transportation fields. However, prior to using these instruments in international and multicultural studies, further validation work across diverse non-English speaking countries and populations is needed.