台风灾害避灾行为及影响因素的信效度分析

选取浙江南部山区丽水市居民台风灾害避灾行为的问卷调查样本,应用SPSS13.0统计软件,通过KMO指数、球形检验和主成份分析方法,分别对台风灾害的行为模式和影响因素进行了信效度分析.结果表明:灾前避灾行为与灾时行为的KMO指数分别为0.792和0.663,而且球形检验显著,通过因子分析,用最大方差正交旋转变换,灾前避灾行为的α值大于0.7,灾时行为的α值在0.51～0.70.行为模式影响因素的KMO指数为0.682,接近0.7,并且球形检验显著,经因子分析和最大方差正交旋转变换,α值的范围在0.54～0.72.台风灾害的行为模式和影响因素的调查及信效度分析方法可用于其它地区台风影响的研究.

Analysis of reliability and validity of preparedness behavior towards typhoon disaster prevention and its impacting factors

Selecting 267 representative questionaire samples of preparedness beharior of citizens in Lishui City of Zhejiang Province toward disaster prevention. The reliability and validity of the preparedness behavior and the impacting factors was analyzed by calculating KMO index, Bartlett's test of sphericity and principle component analysis. The results show that the KMO indices for the preparedness behavior before and at disaster happening are 0. 792 and 0. 663 respectirely,Bartlett's test of sphericity is significant,through factor analysis and varmax rotation transfer the cronbach values a for preparedness behavior before and at disaster happening are larger than 0. 7 and 0. 51 ～ 0. 70 respectively;About the impacting factors,KMO index approaches to 0. 7,Bartlett's test of sphericity is significant , cronbach value a is between 0. 52 ～ 0. 7. The investigation on preparedness behavior towards typhoon disaster prevention and impacting factors and the methed for analysis of reliability and validity give a reference to other similar research.