知识与财富的链接
目的分析翻译和修订的骨质疏松症知识问卷的信度和效度.方法根据中国文化背景对骨质疏松症知识问卷进行翻译和修订,并测试291例社区中老年人.随机抽取其中66例进行重测.结果内部一致性信度α系数0.83～0.87.重测Pearson相关系数0.75～0.82（P＜0.001）,配对t检验,P＜0.05.条目分析除第3条外,均具有较好的区分度,高低分组之间差异有显著性（P＜0.001）.结论骨质疏松症知识问卷的信度与效度良好,项目设置适用于骨质疏松症知识的评价.
Objective To study the reliability and validity of the revised Chinese version of OKT(Osteoporosis Knowledge Tests).Methods The OKT was tested in a sample of 291 community-dwelling middle-aged and elderly and the OKT was retested randomly in 66 of them after 1 month.Results Cronbach's alpha reliability coefficients ranged from 0.83(calcium knowledge)to 0.87(OKT).Test-retest correlation coefficients ranged from 0.75(exercise knowledge)to 0.82(OKT)(P<0.001).There was significant difference between test and retest (P<0.05).Item analysis indicated that there were significant difference in most items between higher scores group and lower one (P<0.001)except the third item.Conclusions OKT has psychometrically satisfying reliability and validity.
