医学生自主学习能力测评量表的信效度检验

The Reliability and Validity of Scale of the Self-directed Learning Competence for Medical Students

目的对自制的医学生自主学习能力测评量表,进行信度、效度检验,检验其在医学生中的适用性。方法采用横断面调查的方法,用医学生自主学习能力测评量表对全国3423名医学生进行测评。结果总量表重测信度为0.992(P<0.001),各分量表重测信度为0.983(P<0.001),0.975(P<0.001),均在0.700以上,说明此量表具有较好的重复性;总量表Cronbach'α系数为0.929(P<0.001),各分量表的Cronbach'α系数为0.809(P<0.001),0.914(P<0.001),均在0.700以上,说明此量表具有较好的内在一致性;总量表分半信度为0.892(P<0.001),各分量表分半信度为0.795(P<0.001),0.883(P<0.001),均在0.700以上,符合量表评价标准;专家对量表总体评定的内容效度指数为0.970(P<0.001),表明量表各条目有效反映了其所属维度的内容;结构效度采用因子分析提取出6个因子,累计贡献率为53.194%,数据分析的理论结构与假设基本一致,量表结构效度较好;标准关联效度为0.510(P<0.001)说明量表的关联效度高。结论本研究编制的量表具有较好的信度、效度,对于了解医学生自主学习能力,提高其自身素质,具有一定应用价值,同时对医学教育也有一定启示作用。

Objective To test the reliability and validity of scale of the self -directed learning competence for medical students ,and test the applicability of medical students .Methods With a cross-sectional survey method ,using the scale of the self -directed learning competence for medical students to evaluate 3423 medical students .Results The repeated measurement reliability of the overall scale was 0.992,the Cronbach Alpha coefficient of the overall scale was 0.944,the dimensions were 0.809 and 0.914;The split-scale relia-bility coefficient of the whole scale was 0.892,the dimensions were 0.795 and 0.883.The content validity index（CVI）for the overall scale was 0.970.The correlation analysis indicated that the structure of the scale was excellent .The result of factor analysis was also good.With the method of principle components ,6 factors were extracted on the standard that eigenvalue is overl .The result indicated that the structure of the scale was similar to the theory construction .The scale also had separating capability .Conclusion The developed scale shows excellent reliability and validity .It has a certain application value to understand the medical students＇autonomous learning a-bility,and improve their own quality ,and at the same time it has enlightenment function for medical education .