There are several limitations of this study that are as foll

There are several limitations of this study that are as follows.First,the potential incongruence of administrative block-groups and conceptual definitions of neighborhoods as block-group boundaries may not accurately capture neighborhood-wide characteristics.However,increasingly,block-group level analyses are recognized as an appropriate geography to understand neighborhood influences on health (Krieger,Williams,& Moss,1997; Perkins,Florin,Rich,Wandersman,& Chavis,1990).Second,sample sizes at each level are important in multi-level analysis,with the sample sizes at higher levels being more important for fixed effect estimates.However,there is increasing recognition that extremely small group sizes may bias analytic results by overestimating group-level variance estimates (Theall et al.,2008).To address this issue our sample was restricted to group sizes of 3 or more while maintaining the sociodemographic profile of the original sample.Third,the cross-sectional design of the study only captures a one-time assessment of attitudes,beliefs,behaviors and health and thus precludes understanding the temporal relationships between the variables of interest in our analysis.Because neighborhood attachment is considered a stable variable that takes a long time to develop (Brown & Perkins,1992; Dallago et al.,2009),longitudinal data on individual and neighborhood covariates would improve our understanding of the relationship between these covariates and neighborhood attachment.

本次调查的一些局限如下所述：
首先,街区管理的潜在不一致以及对邻居的定义的不同可能使我们的采访对象不是那么准确（意译）.然而,人们越来越多的将街区层面的分析作为 研究当地居民健康情况的地缘方法(Krieger,Williams,& Moss,1997;
Perkins,Florin,Rich,Wandersman,& Chavis,1990).
其次,每个级别的样本数量对于多级别分析十分重要,大样本对于固定结果的评估尤为重要.然而,人们现在逐渐认识到,过小的样本无益于估计整体变量.(Theall et al.,2008).为了解决此问题,我们选取的团体大小都在3或者3以上（咱也不知道它这个3是什么单位）.
第三,本次研究的主要设计都仅仅考虑到的是对受访者态度、信仰、行为以及健康情况的一次性评估,而忽略了本次分析中所选用变量会随时间变化这一事实.由于邻里依恋是需要长时间的发展才能养成的(Brown & Perkins ,1992; Dallago et al.,2009),因此采用长期调查的方法方能使我们更好的理解这些变量与邻里依恋的关系（但是他们并没有采取长期调查的方法）.