| 基于经典测量理论与项目反应理论的消化性溃疡生命质量测定量表QLICD-PU(V2.0)条目分析 |
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| 引用本文： | 梁长业1,周宇2,于磊3,雷平光4,陈莹5,杨铮1,房杨晨1. 基于经典测量理论与项目反应理论的消化性溃疡生命质量测定量表QLICD-PU(V2.0)条目分析[J]. 现代预防医学, 2022, 0(17): 3234-3240. DOI: 10.20043/j.cnki.MPM.202109553 |
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| 作者姓名： | 梁长业1 周宇2 于磊3 雷平光4 陈莹5 杨铮1 房杨晨1 |
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| 作者单位： | 1.广东医科大学公共卫生学院,广东 东莞 523808;2.广东医科大学附属医院;3.广州花都区人民医院; 4.深圳市松岗人民医院; 5.昆明医科大学公共卫生学院 |
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| 摘 要： | 目的 运用经典测量理论与项目反应理论对消化性溃疡患者生命质量量表QLICD-PU(V2.0)的条目进行分析与评价,为量表的改进与完善提供依据。方法 应用QLICD-PU(V2.0)对170例消化性溃疡患者进行测评,采用经典测量理论中的变异度法、相关系数法、因子分析法、克朗巴赫系数法,同时应用项目反应理论中的Samejima等级反应模型计算每个条目的难度、区分度系数和信息量,来评价QLICD-PU(V2.0)量表条目的质量。结果 经典测量理论结果提示QLICD-PU(V2.0)共性模块中变异法计算在总的41个条目中条目标准差小于0.90的有7个; 在总的41个条目中有9个条目与其所在领域的相关性比较低; 项目反应理论结果显示所有条目的区分度较好,取值范围均在1.01～1.69; 在总的41个条目中33个条目的难度系数取值范围在-3.94～3.70,且随着难度等级(B1→B4)的增加呈现出单调递增的趋势; 共性模块条目的平均信息量均较好,特异模块的平均信息量不太理想。结论 QLICD-PU(V2.0)量表所有条目区分度,大部分条目的难度以及共性模块平均信息量比较好,量表具较好的信度,但仍然有部分条目有待进一步修订并验证效果。
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| 关 键 词： | 消化性溃疡 经典测量理论 项目反应理论 生命质量 量表 |
Item analysis of peptic ulcer quality of life scale QLICD-PU(V2.0)based on Classic Test Theory and Item Response Theory |
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| LIANG Zhang-ye,ZHOU Yu,YU Lei,LEI Ping-guang,CHEN Ying,YANG Zheng,FANG Yang-chen. Item analysis of peptic ulcer quality of life scale QLICD-PU(V2.0)based on Classic Test Theory and Item Response Theory[J]. Modern Preventive Medicine, 2022, 0(17): 3234-3240. DOI: 10.20043/j.cnki.MPM.202109553 |
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| Authors: | LIANG Zhang-ye ZHOU Yu YU Lei LEI Ping-guang CHEN Ying YANG Zheng FANG Yang-chen |
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| Affiliation: | *School of Public Health, Guangdong Medical University, Dongguan, Guangdong 523808, China |
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| Abstract: | Objective To analyze and evaluate the items of the Quality of Life Instruments for Chronic Diseases-Peptic Ulcer(QLICD-PU V2.0)by the Classic Test Theory and Item Response Theory, and to provide the basis for the improvement and perfection of the scale. Methods Based on the data of 170 peptic ulcer disease inpatients, four statistical methods in Classic Test Theory including variability analysis, correlation analysis, factor analysis and Cronbach’s alpha coefficient were used to assess the items of the scale. At the same time, the Samejima Graded Response Model in Item Response Theory was used to figure out the difficulty, discrimination coefficient and the average information of each item. Results In the QLICD-PU(V2.0)general module, there were 7 out of the total 41 items with standard deviation less than 0.90, based on the variation method. Correlation analysis of items-domains showed that there were 9 items had low relevance to its own domain. The results based on Item Response Theory showed that all the items had a well discrimination parameter ranging from 1.01 to 1.69. The difficulty coefficients of 33 items out of all 44 items ranged from -3.94 to 3.70 and presented a monotonically increasing trend with the increase of difficulty level(B1→B4). The items of general module could provide good average information, but the average information of specific module was not ideal. Conclusion In the QLICD-PU(V2.0)scale, the discrimination of all items, the difficulty of most items and the average information of general modules were well evaluated. The scale has good reliability, but there are still some items need to be further revised and verified. |
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| Keywords: | Peptic ulcer Classical test theory Item response theory Quality of life Scale |
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