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目的评价自制的医学生用药认知水平量表(QMCLMS)的信效度,以期对量表进行改进和完善。方法分层抽取甘肃平凉地区1 375名医学生与非医学生的有效问卷数据,采用信度分析和因子分析等方法系统评价量表的信度、内容效度和结构效度。结果量表Cronbach’sα系数为0.851;除了F5因素分量表Cronbach’sα系数为0.476之外,其余因素分量表Cronbach’sα系数均大于0.7。经因子分析,因子结构与量表设计吻合,结构效度较好。经独立样本T检验,F2、F3、F4、F5分量表积分和量表总分在医学生与非医学生之间明显存在统计学差异,提示量表的实证效度较好。结论 QMCLMS量表的信度和效度评价令人满意,可在医药院校中进行推广和使用。
Objective To evaluate the reliability and validity of self-made QMCLMS, in order to improve and perfect the scale. Methods The questionnaire data of 1 375 medical students and non-medical students in Pingliang area of Gansu were stratified and extracted. The reliability, content validity and structure validity of the scale were systematically evaluated by reliability analysis and factor analysis. The Cronbach’sα coefficient of the results scale was 0.851. The Cronbach’s α coefficients of all the other factors except the F5 factor scale were 0.476. The factor analysis shows that the factor structure is consistent with the scale design, and the structure validity is good. T test by independent samples, F2, F3, F4, F5 subscales and subscales in the total score between medical students and non-medical students there is a statistically significant difference, suggesting that the scale of the empirical validity is better. Conclusion The reliability and validity of QMCLMS scale are satisfactory and can be promoted and used in medical colleges and universities.