孕产妇脐带血知信行问卷的编制及信效度检验

Questionnaire Development of KAP of Umbilical Cord Blood in Maternals and Testing of Validity and Reliability

目的:探讨并编制孕产妇脐带血知信行问卷并进行信效度检验。方法:以“知信行”理论为框架,通过文献回顾和专家函询形成预试版问卷。应用预试版问卷对山东省济南市某三级甲等医院359例产检孕妇进行调查,进行项目分析、信度检验、探索性因子分析和验证性因子分析检验问卷的信度和效度,最终形成孕产妇脐带血知信行问卷正式问卷。结果:最终版问卷包括知识、态度、行为3个维度,共计46个条目。总问卷的Cronbach′sα、折半信度、平均内容效度指数分别为0.986、0.847、0.925,各维度的Cronbach′sα分别为0.960、0.966、0.954;折半信度分别为0.854、0.938、0.955;平均内容效度指数分别为0.933、0.918、0.905,各条目内容效度指数均>0.867;探索性因子分析中各维度分别提取6、1、1个公因子,累计方差贡献率为81.460%;验证性因子分析所得指标均符合要求。结论:孕产妇脐带血知信行问卷具有良好的信效度,可作为测评孕产妇认知水平的有效工具。

Objective:To explore and develop a questionnaire of knowledge,attitude,and practice(KAP)of umbilical cord blood in maternals and test its reliability and validity.Methods:Based on the KAP theory,the pre-test questionnaire was formed through literature review and expert consultation.The preliminary version of the questionnaire was used to investigate 359 pregnant women undergoing prenatal care in a Grade III-A hospital in Jinan of Shandong province.The item analysis,reliability test,exploratory factor analysis and confirmatory factor analysis were carried out to test the reliability and validity of the questionnaire,and finally the formal questionnaire of KAP was established.Results:The final version of the questionnaire included knowledge,attitude and behavior,with a total of 46 items.The Cronbach′sαcoefficient,split-half reliability,and average content validity index of the total questionnaire are 0.986,0.847 and 0.925 respectively.The Cronbach′sαcoefficients for each dimension are 0.960,0.966 and 0.954 respectively;the split-half reliability values are 0.854,0.938 and 0.955,and the average content validity indices are 0.933,0.918 and 0.905 for each dimension.The content validity indices for each item are all greater than 0.867.In the exploratory factor analysis,the common factor of 6,1,and 1 was respectively extracted for each dimension,with a cumulative percent variance of 81.460%.All the indexes obtained by confirmatory factor analysis meet the requirements.Conclusion:The questionnaire has good reliability and validity,and can be used as an effective tool to evaluate the cognitive level of pregnant women.