广州市重点人群肝吸虫病防治知识调查问卷的信度、效度评价

Evaluate on reliability and validity of questionnaire on hepatic distomiasis prevention knowledge for the key crowd in Guangzhou

目的 评价通过德尔菲法形成的＂广州市重点人群肝吸虫病防治知识调查问卷＂的信度、效度.方法 使用调查问卷对120名广州市肝吸虫病患者、新入职公务员、饮食从业人员进行测试,分层随机抽取其中60例进行重测,计算该问卷的内部一致性、重测信度和结构效度.结果 该问卷Cronbach＇s系数为0.798,10个指标的Spearman相关系数均＞0.7,P值均＜0.01.对10个指标进行因素分析,产生三个公共因子,它们总共能解释总体方差的60.84%,10个指标因子负荷在0.514～0.841之间,均＞0.40的基本要求.结论 该问卷的信度、效度良好,具有良好的可靠性和有效性,可用于评价广州市肝吸虫病患者、新入职公务员、饮食从业人员肝吸虫病防治知识水平.

Objective To evaluate the reliability and validity on the questionnaire of hepatic distomiasis prevention knowledge for the key crowd in Guangzhou made by Delphi method. Methods The questionnaire of hepatic distomiasis prevention knowledge for the key crowd in Guangzhou was tested in a sample of 120 cases, including liver trematodiasis patient, enters the duty official, the diet jobholders.And the questionnaire was retested randomly in 60 of them after two weeks. By analyzing the results of the questionnaire survey, the reliability and validity were calculated. Results The whole Cronbach＇s α coefficient of the questionnaire was 0. 798. The correlation coefficient of 10indicators was more than 0. 7, and their P values were all less than 0. 01. Four public factors were produced by factors analyzing of 10 indicators, they could explain 60. 84% of the whole variance. The factor loadings of the 10 indicators were 0. 514 ～0. 841, which were all over 0. 4. Conclusoons The reliability and validity of the questionnaire have reached the demands of standard questionnaire. And it would be practical for hepatic distomiasis health education in hepatic distomiasis patients.