基于经典测量理论与项目反应理论的抑郁症生命质量测定量表条目分析  

Item analysis on Quality of Life Instruments for Chronic Diseases-Depression V2.0 based on classical test theory and item response theory

作　　者：陈国均 万崇华 温金峰 丁梦珂 冼君定 杨铮 CHEN Guojun;WAN Chonghua;WEN Jinfeng;DING Mengke;XIAN Junding;YANG Zheng(Department of Epidemiology and Health Statistics,School of Public Health,Guangdong Medical University,Dongguan,Guangdong 523808,China;Research Center for Quality of Life and Applied Psychology/Key Laboratory of Quality of Life and Psychological Evaluation Intervention,Guangdong Medical University,Dongguan,Guangdong 523808,China;Department of Psychology,Guangdong Sanjiu Brain Hospital,Guangzhou,Guangdong 510510,China;Changzhou Center for Disease Control and Prevention,Changzhou,Jiangsu 213022,China;Department of General Medical,Zhanjiang Municipal Central People’s Hospital,Zhanjiang,Guangdong 524045,China)

机构地区：[1]广东医科大学公共卫生学院流行病与卫生统计学系,广东东莞523808 [2]广东医科大学生命质量与应用心理研究中心/生命质量与心理测评干预重点实验室,广东东莞523808 [3]广东三九脑科医院心理科,广州510510 [4]常州市疾病预防控制中心,江苏常州213022 [5]湛江中心人民医院全科医疗科,广东湛江524045

出　　处：《重庆医学》2023年第22期3481-3487,3493,共8页Chongqing medicine

基　　金：广东医科大学学科建设项目(4SG21276P)。

摘　　要：目的使用经典测量理论与项目反应理论(IRT)结合的方法对抑郁症生命质量测定量表(QLICD-DE V2.0)进行综合条目评价。方法使用QLICD-DE V2.0测定210例抑郁症患者的生命质量,通过变异度法、相关系数法、因子分析法、克朗巴赫(Cronbach)系数法及IRT法对量表条目进行综合评价。结果QLICD-DE V2.0条目的标准差在0.78~1.46,条目与量表总标准化得分之间的相关系数在0.161~0.695,两个条目的因子载荷小于0.5,总量表的Cronbach’α系数为0.914;单维性IRT分析显示各条目区分度为0~5.46,8个条目的难度偏大,各条目的平均信息量为0~4.20。经过综合评价,QLICD-DE V2.0中有27个条目的综合评价为良好,13个条目评价为待改进。结论量表的大部分条目测量学特性良好,部分条目需要后续进行修订验证,该量表能较好地对抑郁症患者的生命质量进行评价。Objective To use the combination method of classical measurement theory and item response theory(IRT)to comprehensively evaluate the items of the Quality of Life Instruments for Chronic Diseases Depression V2.0(QLICD-DE V2.0).Methods QLICD-DE V2.0 was used to measure the quality of life in 210 patients with depressive disorder,and the items of the scale were comprehensively evaluated by using the variability method,correlation coefficient method,factor analysis method,Cronbach coefficient method and IRT method.Results The standard deviation of each item in QLICD-DE V2.0 ranged 0.78-1.46.The correlation coefficient between the each item and total standardized score of the scale ranged 0.161-0.695.The factor load of two items was less than 0.5.The Cronbach’αcoefficient of the total scale was 0.914.The unidimensional IRT analysis results showed that the discrimination of each item ranged 0-5.46,and 8 items had a higher difficulty level.The average information content of each item ranged 0-4.20.Through the comprehensive evaluation,27 items of QLICD-DE V2.0 were evaluated as good and 13 items needed to be improved.Conclusion Most items of the scale have good metrological characteristics,and some items need to be further revised and verified.The scale could effectively evaluate the quality of life of the patients with depressive disorder.

关 键 词：抑郁症 生命质量 经典测量理论 项目反应理论 条目分析 

分 类 号：R749.4[医药卫生—神经病学与精神病学]