Abstract:

Objective To evaluate the quality of a questionnaire about schistosomiasis knowledge of the pupils in Wuxing Farm School in Nanchang City. Methods The quality of the questionnaire about schistosomiasis knowledge was evaluated through reliability, validity, discrimination and some other indexes. Results The entire reliability of the survey was high with its split?half reliability of 0.68 and Cronbach α coefficient of 0.627. The content validity was good: the exploratory factor analysis revealed 5 common factors from 13 questionnaire items which could account for 58.3% of the total variance; the confirmatory factor analysis revealed that the construct validity of 13 questionnaire items was better than that of the whole questionnaire (17 items in to? tal) ( χ2 = 90.5, df = 65, GFI = 0.92, AGFI = 0.88, NFI = 0.58， CFI = 0.817， RMSEA = 0.049); the difficulty and the discrimination coefficients of the questionnaire were suitable, being 0.595 and 0.42 respectively. Conclusion The questionnaire is qualified in general, but parts of the items need to be revised to perfect.

Key words: Schistosomiasis, Health education, Questionnaire, Reliability, Validity, Nanchang City

摘要：

目的 评价南昌市五星农场小学学生血防知识问卷的质量。 方法 采用信度、 效度、 难度与区分度等指标对问卷质量进行评估。 结果 知识问卷总体信度水平较好， 分半信度和Cronbach α系数分别为0.68、 0.627； 问卷量表内容效度较好， 探索性因子分析表明13个条目的量表有5个公因子， 可以解释58.3%的总体方差， 同时验证性因子分析表明13个条目的量表结构效度较总量表好 （χ2 =90.5， 自由度df = 65， 拟合优度指数GFI = 0.92， 平均拟合优度指数AGFI = 0.88， 规范拟合指数NFI = 0.58， 比较拟合指数CFI = 0.817， 近似误差均方根RMSEA = 0.049 )； 血防知识问卷量表的条目难度适宜且区分度较好， 平均难度指数和平均区分度指数分别为0.595、 0.42。 结论 问卷总体质量合格， 但部分条目需要修正， 使之更加科学可靠。

关键词: 血吸虫病；健康教育；问卷；信度；效度；南昌市