基于项目反应理论的SF-36量表对大学生生命质量的评价  

Using SF-36 scale to survey college students' life quality based on item response theory

作　　者：曹茜 王贵荣[1] 王宇潇[1] 龚美琪 杨林[1] 贺鹭[1] Cao coma, Wang Guirong, Wang Yuxiao, et al(Shanxi Medical University, College of Public Health, Taiyuan 030000, Shanxi, China)

机构地区：[1]山西医科大学公共卫生学院,山西太原030000

出　　处：《中国高等医学教育》2018年第3期31-32,共2页China Higher Medical Education

摘　　要：目的:运用项目反应理论评价SF-36量表测定大学生生命质量的适用性。方法:采用等级反应模型分析条目的区分度、难度等级和信息量,绘制项目特征曲线。结果:区分度为0.38-2.98,平均值为1.71,难度等级单调递增(-4.47-3.06),具有合理的取值范围。结论:SF-36用于测量大学生生命质量区分度均较好、选项设置合理、难度合适。Objective：The Item Response Theory （IRT） was used to evaluate the applicability of the SF-36 scale in the measurement of college students＇ quality of life. Methods： The project response theory Samejima level response model was used to analyze the item＇ s degree of differentiation, difficulty level parameters and information amount, and draw the project characteristic curve. Results： The discriminatory power was 0.38 to 2.98 and the average was 1.71 .The difficulty level parameters （degrees） were strictly monotonously increasing （-4.47 to 3.06）, and had a reasonable range of values. Conclusion：Each item of SF-36 is used to measure the difference in the quality of life of college students, the options are reasonable, and the difficulty is appropriate.

关 键 词：SF-36量表 大学生生命质量 项目反应理论 

分 类 号：G444[哲学宗教—心理学]