中华全科医师杂志
中華全科醫師雜誌
중화전과의사잡지
Chinese Journal of General Practitioners
2015年
9期
686-690
,共5页
李曼%潘志刚%顾杰%高俊岭
李曼%潘誌剛%顧傑%高俊嶺
리만%반지강%고걸%고준령
评价研究%脑力负荷%社区医师
評價研究%腦力負荷%社區醫師
평개연구%뇌력부하%사구의사
Evaluation studies%Mental workload%Community physician
目的 探讨中文版主观负荷评估法(SWAT)和美国国家航空航天任务负荷指数(NASA-TLX)在评估社区医师脑力负荷中的信度和效度.方法 方便抽样抽取上海市110名社区医师,应用两量表中文版对其进行调查,两量表信度的评估采用内部一致性信度、分半信度及条目分-总分一致性,效度评估采用结构效度、项目区分度及两量表聚合效度.结果 NASA-TLX量表分半信度及Cronbach's α系数分别为0.703、0.619,除自我绩效条目外各条目分-总分相关系数均＞0.4(P＜0.01).SWAT量表分半信度及Cronbach'sα系数分别为0.647、0.669,各条目分-总分相关系数均＞0.4(P ＜0.01).因子分析显示两量表的结构效度较好,除NASA-TLX量表的自我绩效条目外,两量表各条目的项目区分效度均较好,两量表总分之间的Spearman相关系数0.359 ～0.465 (P ＜0.01).NASA-TLX量表同时删除自我绩效和受挫程度条目或只删除自我绩效条目的信效度均较原量表高,且前者较后者高.结论 中文版NASA-TLX和SWAT量表在上海市现场临床环境中应用的信度和效度较好,且修改后的NASA-TLX量表特别是删除自我绩效和受挫程度后的量表或可以更好地反映我国社区医师的脑力负荷.
目的 探討中文版主觀負荷評估法(SWAT)和美國國傢航空航天任務負荷指數(NASA-TLX)在評估社區醫師腦力負荷中的信度和效度.方法 方便抽樣抽取上海市110名社區醫師,應用兩量錶中文版對其進行調查,兩量錶信度的評估採用內部一緻性信度、分半信度及條目分-總分一緻性,效度評估採用結構效度、項目區分度及兩量錶聚閤效度.結果 NASA-TLX量錶分半信度及Cronbach's α繫數分彆為0.703、0.619,除自我績效條目外各條目分-總分相關繫數均＞0.4(P＜0.01).SWAT量錶分半信度及Cronbach'sα繫數分彆為0.647、0.669,各條目分-總分相關繫數均＞0.4(P ＜0.01).因子分析顯示兩量錶的結構效度較好,除NASA-TLX量錶的自我績效條目外,兩量錶各條目的項目區分效度均較好,兩量錶總分之間的Spearman相關繫數0.359 ～0.465 (P ＜0.01).NASA-TLX量錶同時刪除自我績效和受挫程度條目或隻刪除自我績效條目的信效度均較原量錶高,且前者較後者高.結論 中文版NASA-TLX和SWAT量錶在上海市現場臨床環境中應用的信度和效度較好,且脩改後的NASA-TLX量錶特彆是刪除自我績效和受挫程度後的量錶或可以更好地反映我國社區醫師的腦力負荷.
목적 탐토중문판주관부하평고법(SWAT)화미국국가항공항천임무부하지수(NASA-TLX)재평고사구의사뇌력부하중적신도화효도.방법 방편추양추취상해시110명사구의사,응용량량표중문판대기진행조사,량량표신도적평고채용내부일치성신도、분반신도급조목분-총분일치성,효도평고채용결구효도、항목구분도급량량표취합효도.결과 NASA-TLX량표분반신도급Cronbach's α계수분별위0.703、0.619,제자아적효조목외각조목분-총분상관계수균＞0.4(P＜0.01).SWAT량표분반신도급Cronbach'sα계수분별위0.647、0.669,각조목분-총분상관계수균＞0.4(P ＜0.01).인자분석현시량량표적결구효도교호,제NASA-TLX량표적자아적효조목외,량량표각조목적항목구분효도균교호,량량표총분지간적Spearman상관계수0.359 ～0.465 (P ＜0.01).NASA-TLX량표동시산제자아적효화수좌정도조목혹지산제자아적효조목적신효도균교원량표고,차전자교후자고.결론 중문판NASA-TLX화SWAT량표재상해시현장림상배경중응용적신도화효도교호,차수개후적NASA-TLX량표특별시산제자아적효화수좌정도후적량표혹가이경호지반영아국사구의사적뇌력부하.
Objective To assess the reliability and validity of Chinese version National Aeronautics and Space Administration Task Load Index (NASA-TLX) and Subjective Work Assessment Technique (SWAT) in evaluating mental workload of community physicians.Methods One hundred and ten community physicians selected by convenience sampling method from Shanghai were recruited.The split-half reliability,Cronbach's α coefficient and Item-total coefficients were adopted to assess the reliability and the validity of Chinese version NASA-TLX and SWAT scales in evaluating the metal workload of participants.Results For NASA-TLX,the Split-Half,Cronbach's α coefficient was 0.703 and 0.619 respectively,all Item-total coefficients (except for performance item) were greater than 0.4 (P ＜ 0.01).For SWAT,the Split-Half,Cronbach's α coefficient of was 0.647 and 0.669 respectively,Item-total coefficients were all greater than 0.4 (P ＜ 0.01).Factor analysis showed that two scales had good structure validity; item discrimination showed satisfactory item validity (except for performance item).The Spearman correlation coefficients between two scales ranged from 0.359 to 0.465 (P ＜ 0.01).Both of the modified versions of NASA-TLX had better reliability and validity than the original one,the one with removed both performance and frustrate item was better than one with removed performance item only.Conclusions The Chinese version NASA-TLX and SWAT can serve as reliable and valid instruments for assessing the community physicians' perception of mental workload in China; and the modified version of NASA-TLX especially the one with removed performance and frustrate item seems to work better than the original one.
