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周热娜, 傅华, 罗剑锋, 李洋. 中国城市社区居民步行环境量表信度及效度评价[J]. 中国公共卫生, 2011, 27(7): 841-842. DOI: 10.11847/zgggws2011-27-07-12
引用本文: 周热娜, 傅华, 罗剑锋, 李洋. 中国城市社区居民步行环境量表信度及效度评价[J]. 中国公共卫生, 2011, 27(7): 841-842. DOI: 10.11847/zgggws2011-27-07-12
ZHOU Re-na, FU Hua, LUO Jian-feng, . Evaluation on reliability and validity of Chinese Walkable Environment Scale for urban community residents[J]. Chinese Journal of Public Health, 2011, 27(7): 841-842. DOI: 10.11847/zgggws2011-27-07-12
Citation: ZHOU Re-na, FU Hua, LUO Jian-feng, . Evaluation on reliability and validity of Chinese Walkable Environment Scale for urban community residents[J]. Chinese Journal of Public Health, 2011, 27(7): 841-842. DOI: 10.11847/zgggws2011-27-07-12

中国城市社区居民步行环境量表信度及效度评价

Evaluation on reliability and validity of Chinese Walkable Environment Scale for urban community residents

  • 摘要: 目的 评价中国城市社区居民步行环境量表的信度和效度,为该量表在中国的推广使用提供科学依据。方法 采用拦截式方便抽样方法在上海市2个步行环境不同等级的小区抽取360名≥20岁社区常住居民进行问卷调查;采用同质性信度、分半信度、重测信度进行信度评价,采用内容效度和结构效度评价进行效度评价。结果 中国城市社区居民步行环境量表总体的Cronbach'α系数、组内相关系数(ICC)和Spearm an相关系数分别为0.807、0.945和0.721;量表中配套生活设施便利情况、道路情况、美化情况、交通情况和治安情况与总量表的Pearson相关系数为0.395~0.840,除配套生活设施便利情况外,其他4个维度与总量表的相关系数均>0.5(P<0.01),该量表的内容效度较好;因子分析结果表明,4个因子的特征值分别为2.957、2.607、2.271和1.572,方差贡献率分别为17.392%、15.333%、13.357%和9.248%,累计方差贡献率为55.33%;除B4和D2 2个条目外,其他15个条目因子负荷均>0.4,该量表具有较好的结构效度。结论 中国城市社区居民步行环境量表具有较好的信度与效度,可作为中国城市社区居民步行环境评价的有效工具。

     

    Abstract: Objective To evaluate the reliability and validity of the Chinese Walkable Environment Scale for urban community residents and to provide scientific basis for the use of the scale in China.Methods An intercept convenient sample of 360 community residents(> 20 years old) from two neighborhoods with different walkable environment were interview ed.The internal consistent reliability,test-retest reliability,split-half reliability,content validity,and construct validity of the scale were examined.Results The Cronbach'α coefficient,the intraclass correlation coefficient (ICC),and the Spearman correlation coefficient of the items of the whole scale were 0.807,0.945,and 0.721,respectively.The Pearson correlation coefficient betw een the individual scale and the whole scale ranged from 0.395 to 0.840.Except for access to services dimension,the correlation coefficient between the other four dimensions and the whole scale was all above 0.5 (P<0.01),indicating the scale had a good content validity.The factor analysis indicated that the eigenvalues of the four common factors were 2.957,2.607,2.271,and 1.572,respectively; the contributing rate of squares were 17.392%,15.333%,13.357%,and 9.248%,respectively; the contributing rate of cumulative sums of squares was 55.33%.And almost all items'factor loadings were higher than 0.4 except the items of B4 and D2,indicating that the scale had a good construct validity.Conclusion The Chinese Walkable Environment Scale for urban community residents has good reliability and validity and could be used as an effective tool for assessing urban community walkable environment in the country.

     

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