While there are a growing number of observational instruments to assess the built and social dimensions of the neighborhood environment, there are few reliable and validated instruments; there are no instruments that assess the neighborhood environment during nighttime hours, a potential peak period of health and safety risk. The purpose of this investigation is to establish the metric properties of Neighborhood Inventory for Environmental Typology (NIfETy) Instrument nighttime ratings. Reliability of the scale was measured by internal consistency reliability and test re-test correlation. Validity was evaluated through correlation with the daytime NIfETy rating and regression models with local violent crime data. The nighttime items had good internal consistency (α = .81-82) for the total scale and acceptable internal consistency for a seven-item nighttime disorder scale (α = .66-.71). Future investigations will examine the nighttime NIfETy and its association with specific risk behaviors to evaluate changes in neighborhood environment.

中文翻译：

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评估邻里混乱的夜间观察措施：夜间 NIfETy 评估的有效性

虽然有越来越多的观察工具来评估社区环境的建筑和社会维度，但可靠和经过验证的工具很少；没有工具可以在夜间评估邻里环境，这是健康和安全风险的潜在高峰期。本次调查的目的是建立环境类型学 (NIfETy) 仪器夜间评级的邻里清单的度量属性。量表的信度通过内部一致性信度和重测相关性来衡量。通过与白天 NIfETy 评级和回归模型与当地暴力犯罪数据的相关性来评估有效性。夜间项目具有良好的内部一致性（α = . 81-82) 用于七项夜间障碍量表 (α = .66-.71) 的总量表和可接受的内部一致性。未来的调查将检查夜间 NIfETy 及其与特定风险行为的关联，以评估邻里环境的变化。