新生儿科护士核心能力评价量表的心理测量学评价

Psychometric evaluation of the Inventory of Core Competency for Neonatal Nurses

目的 对新生儿科护士核心能力评价量表进行心理测量学评价,以确定量表的适用性.方法 采用自制新生儿科护士核心能力评价量表,于2017年1-3月以方便抽样方式选取新生儿科病房护士共147名进行匿名问卷调查.结果 量表各题难度0.618~0.756,区分度0.314~0.712,均P〈0.01.内容效度指数0.936.探索性因子分析抽取6个公因子,累积贡献率为68.7%.验证性因子分析x2/df=3.957,标准化残差均方根为0.043,近似误差均方根为0.047,增量适合度指数为0.965,相对适合度指数为0.971,拟合效果较好.量表内部一致性Cronbach α系数为0.874,重测信度为0.912.结论 新生儿科护士核心能力评价量表具有良好的信效度,可应用于新生儿科护士.

Objective To evaluate the psychometric characteristics of the Inventory of Core Competency for Neonatal Nurses,and identified its applicability. Methods A total of 147 neonatal nurses from January 2017 to March 2017 were recruited using convenience sampling method.The Inventory of Core Competency for Neonatal Nurses was used to investigate. Results The difficulty scores of the items were 0.618-0.756 and their discrimination correlation coefficients were 0.314-0.712, all P 〈 0.01. The content validity index of the inventory was 0.936.Six factors were extracted after exploratory factor analysis,and their cumulative contribution was 68.7%.The results of confirmatory factor analysis were as follows：x2/df was 3.957, standardized residual root mean square was 0.043, root mean square error approximation was 0.047, incremental fitness index was 0.965,comparative fitness index was 0.971.The total scale Cronbach alpha was 0.874,and the retest reliability was 0.912. Conclusions The validity and reliability of the Inventory of Core Competency for Neonatal Nurses support the use of it in neonatal nurses.