中文版主观负荷评估法量表和美国国家航空航天任务负荷指数量表评估三级医院内科医生脑力负荷的信效度研究  

The Chinese Version of the Subjective Load Assessment Method and the US National Aeronautics and Space Administration Task Load Index Scales for Assessing the Reliability and Validity of Physicians' Mental Loads in Tertiary Hospitals

作　　者：马琳琳 潘志刚 MA Linlin;PAN Zhigang(Department of General Practice,Yangpu Hospital Tongji University,Shanghai 200090,China;Department of General Practice,Zhongshan Hospital Fudan University,Shanghai 200032,China)

机构地区：[1]同济大学附属杨浦医院全科医学科,上海市200090 [2]复旦大学附属中山医院全科医学科,上海市200032

出　　处：《中国全科医学》2018年第33期4127-4133,共7页Chinese General Practice

基　　金：上海市卫生计生系统重要薄弱学科建设计划基金(2015ZB0603)

摘　　要：目的检验中文版主观负荷评估法(SWAT)、美国国家航空航天任务负荷指数(NASA-TLX)量表评估三级医院内科医生脑力负荷的信度和效度,并分析不同内科医生之间的脑力负荷差异,为以后评估国内三级医院内科医生的脑力负荷提供一种可行的工具。方法 2014年11月—2015年1月采用方便抽样法选取复旦大学附属中山医院内科临床执业医生107例为调查对象。采用医生一般情况调查表及中文版SWAT、NASA-TLX量表对其进行调查。采用内部一致性信度、分半信度、条目与总分的相关性进行信度评价,采用结构效度、区分效度进行效度评价。采用多个独立样本的非参数检验比较不同科室医生脑力负荷水平的差异。结果共发放调查问卷107份,回收有效问卷105份(2例拒绝调查),有效回收率为98.1%。中文版SWAT、NASA-TLX量表的Cronbach'sα系数分别为0.504、0.516,分半信度系数分别为0.360、0.634,中文版SWAT量表各条目得分与其总分的相关系数均>0.3(P值均<0.05),中文版NASA-TLX量表心智需求、体力需求、时间需求、努力程度、受挫程度条目得分与其总分的相关系数均>0.3(P值均<0.05),由于中文版NASA-TLX量表自我绩效条目得分与其总分的相关系数<0.3,故将此条目删除,形成C-NASA-TLX量表,其Cronbach'sα系数为0.645,分半信度系数为0.690,各条目得分与其总分的相关系数均>0.3(P值均<0.05)。中文版SWAT量表的KMO值为0.552,Bartlett's球形检验χ~2=24.711,P<0.001,说明适合进行因子分析;共提1个公因子,累积方差贡献率为51.343%,各条目载荷值为0.573～0.817。中文版NASA-TLX量表的KMO值为0.590,Bartlett's球形检验χ~2=117.010,P<0.001,说明适合进行因子分析;共提取3个公因子,累积方差贡献率为76.508%,各条目载荷值为0.602～0.827。C-NASA-TLX量表的KMO值为0.607,Bartlett's球形检验χ~2=96.658,P<0.001,说明适合进行因子分析;共提取2个公因子,累积方差贡献率Objective To verify the reliability and validity of the Chinese version of the Subjective Load Assessment Method(SWAT)and the National Aeronautics and Space Administration Task Load Index(NASA-TLX)scales for assessing the mental load of physicians in tertiary hospitals,and to analyze the differences in mental loads among physicians.The analysis of the differences provided a feasible tool for assessing the mental workload of physicians in Chinese tertiary hospitals.Methods From November 2014 to January 2015,107 cases of clinical practitioners in the Zhongshan Hospital Fudan University were selected through a convenient sampling method.A questionnaire assessing doctors'general mental state and the Chinese version of the SWAT as well as NASA-TLX scales were used in this study.Reliability was evaluated through internal consistency reliability,split-half reliability,and the correlation between these items and the total score.The validity of the structure was evaluated through structural validity and discriminant validity.Non-parametric tests using multiple independent samples were used to compare differences in brain load levels among physicians from different departments.Results A total of 107 questionnaires were distributed,and 105 valid questionnaires were returned(two cases were rejected).The effective recovery rate was 98.1%.The Cronbach'sαcoefficients of the Chinese version of SWAT and NASA-TLX scales were 0.504 and 0.516,respectively.The split-half reliability coefficients were 0.360 and 0.634,respectively.The correlation coefficient between the scores of items of the Chinese version of SWAT scale and the total score was>0.3(all P values<0.05).The correlations between the scores from the Chinese version of NASA-TLX scale of mental needs,physical needs,time requirements,efforts,degree of frustration and total scores were>0.3(P<0.05 indicating significant differences).With the Chinese version of the NASA-TLX,the correlation coefficient between the self-performance item score and its total score was less than 0.3

关 键 词：工作负荷量 医师 内科学 信度 效度 

分 类 号：R857.14[医药卫生—航空、航天与航海医学]