Gender and Age Based Differential Item Functioning in the AMC Linear Disability Score Project
Gender and Age Based Differential Item Functioning in the AMC Linear Disability Score Project
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AMC 线性残疾评分项目中基于性别和年龄的差异项目的作用
DOI：
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
R. J. Haan
中科院分区：
文献类型：
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作者：
R. Holman;R. Lindeboom;R. J. Haan
题库中的一个重要假设是，校准题库中包含的项目对于人口中的所有子组都具有相同的测量特征。当两组患者以给定的方式对某一项做出反应的概率不同时，即使他们的健康状况或生活质量相同，也会出现不同的项目功能。如果忽略不同的项目功能，就会得到不准确的测量结果，患者组之间的真正差异可能会被掩盖，而不存在的差异可能会被创造出来。在旨在量化与健康相关的生活质量各方面的各种工具中，已经确定了不同的项目功能。在以社区为基础的抽样调查中，最低限度国家考试的项目(续第2页)显示，对教育和基于性别的群体的作用不同。基于SF-36的RAND-36条目对于多发性硬化症、风湿性疾病和COPD患者具有不同的测量特征，而在2000年医疗支出小组调查的受访者中，SF-12条目在基于年龄和教育水平的人群中具有不同的功能。在L下肢截肢者样本中，河米德运动L指数项在年龄组中的作用不同，但对性别组的作用不同。巴斯强直性脊柱炎功能指数和修订的利兹残疾问卷都显示出在年龄和感觉到的病程方面的差异。《全国健康访谈调查残障副刊》征文样本中的项目
An important assumption in item banking is that the items included in a calibrated item bank have the same measurement characteristics for all subgroups in the population. Differential item functioning occurs when patients in two groups have different probabilities to respond to an item in a given way, even though they have the same level of health status or quality of life. If differential item functioning is ignored, inaccurate measurements are obtained and true differences between patient groups may be obscured and nonexistent differences ‘created’. Differential item functioning has been identified in a wide range of instruments, designed to quantify aspects of health related quality of life. Items from the Minimental State Examination have been (continued on p 2) shown to function differently for education and gender based groups in a communitybased sample. Items from the RAND-36, based on the SF-36, had different measurement characteristics for patients with multiple sclerosis, rheumatic diseases and COPD, while items from the SF-12 function differently in age and education level based groups in respondents to the 2000 Medical Expenditure Panel Survey. The Rivermead Mobi l i ty Index items functioned differently for age based but not for gender based groups in a sample of lower l imb amputees. The Bath Ankylosing Spondylitis Functional Index and Revised Leeds Disability Questionnaire both demonstrated differential i tem functioning with regard to age and perceived duration of illness. The items from the National Health Interview Survey Disability Supplement in a sample of Call for papers
影响因子：
3.7
作者：
Schulz, R;Bookwala, J;Williamson, GM
通讯作者：
Williamson, GM