Nilsson Jan, Engström Maria, Florin Jan, Gardulf Ann, Carlsson Marianne
Department of Health Sciences, Faculty of Health, Science, and Technology, Karlstad University, SE-651 88 Karlstad, Sweden; Department of Health Promotion Sciences, Sophiahemmet University, SE-114 86 Stockholm, Sweden; Japanese Red Cross Institute for Humanitarian Studies, Tokyo, Japan.
Department of Health and Caring Science, University of Gävle, SE-801 76 Gävle, Sweden; Department of Public Health and Caring Sciences, Uppsala University, SE-751 22 Uppsala, Sweden.
Nurse Educ Today. 2018 Dec;71:233-239. doi: 10.1016/j.nedt.2018.09.028. Epub 2018 Sep 29.
The Nurse Professional Competence (NPC) Scale with 88-items has been used to measure self-reported competence among nursing students and registered nurses in many national and international nursing research projects. However, a shorter version of the scale with maintained quality has been requested to further enhance its usability.
To develop and evaluate the construct validity and internal consistency of a shorter version of the NPC Scale.
A developmental and methodological design.
The study was based on a sample of 1810 nursing students at the point of graduation from 12 universities in Sweden.
The number of items in the original NPC Scale was reduced using several established research steps and then evaluated for data quality and construct validity using principal component analysis and confirmatory factor analysis. Reliability was measured as internal consistency using Cronbach's alpha.
The extensive process of reducing the number of items resulted in a version with 35 items. Principal component analysis resulted in six factors explaining 53.6% of the variance: "Nursing Care", "Value-based Nursing Care", "Medical and Technical Care", "Care Pedagogics", "Documentation and Administration of Nursing Care", and "Development, Leadership, and Organization of Nursing Care". All factors showed Cronbach's alpha values of >0.70. The confirmative factor analysis goodness-of-fit indexes were for root mean square error of approximation 0.05 and for comparative fit index 0.89.
The NPC Scale Short Form (NPC Scale-SF) 35-items revealed promising results with a six-factor structure explaining 53.6% of the total variance. This 35-item scale can be an asset when used alone and together with other instruments it can provide the possibility of more complex analyses of self-reported competence among nursing students and registered nurses.
包含88个条目的护士专业能力（NPC）量表已在许多国内外护理研究项目中用于衡量护理专业学生和注册护士自我报告的能力。然而，人们要求有一个质量保持不变但更简短的版本，以进一步提高其可用性。
开发并评估NPC量表简短版本的结构效度和内部一致性。
一种发展性和方法性设计。
该研究基于瑞典12所大学1810名即将毕业的护理专业学生的样本。
使用几个既定的研究步骤减少原始NPC量表中的条目数量，然后使用主成分分析和验证性因素分析评估数据质量和结构效度。使用克朗巴哈系数测量信度作为内部一致性。
大量减少条目数量的过程产生了一个包含35个条目的版本。主成分分析产生了六个因素，解释了53.6%的方差：“护理”、“基于价值观的护理”、“医疗和技术护理”、“护理教学法”、“护理记录与管理”以及“护理发展、领导与组织”。所有因素的克朗巴哈系数值均>0.70。验证性因素分析的拟合优度指标为近似均方根误差0.05，比较拟合指数0.89。
35个条目的NPC量表简短版（NPC Scale-SF）显示出有前景的结果，其六因素结构解释了总方差的53.6%。这个35个条目的量表单独使用时可能是一项资产，并且与其他工具一起使用时，可以为更复杂地分析护理专业学生和注册护士自我报告的能力提供可能性。
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