目的： 编制实习护生防控医院外源性感染量表，并进行信效度检验。方法： 根据知-信-行理论模式，通过文献查询、专家咨询及半结构化访谈，初步确定量表的理论结构，运用项目分析、探索性因子分析和信效度检验等方法对天津市4所三级甲等医院的实习护生进行测试，并检验量表的信度和效度。结果： 实习护生防控医院外源性感染正式量表包括3个因子，共35个条目，即知识、态度、行为3个维度，累积方差贡献率为47.3%。量表的内容效度指数为0.933；每个条目与总量表均显著相关，相关系数为0.31~0.96；量表总体Cronbach's α系数为0.92，知识、态度、行为3个维度的Cronbach's α系数分别为0.66、0.80、0.93。结论： 本研究编制的实习护生防控医院外源性感染量表具有较好的信效度，可作为评价实习护生在临床工作中防控外源性感染能力的测量工具。

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