Item and scale differential functioning of the Mini-Mental State Exam assessed using the differential item and test functioning (DFIT) framework
Item and scale differential functioning of the Mini-Mental State Exam assessed using the differential item and test functioning (DFIT) framework
复制标题
DOI：
10.1097/01.mlr.0000245141.70946.29
复制
发表时间：
2006-11-01
期刊：
影响因子：
3
通讯作者：
Teresi, Jeanne A.
中科院分区：
文献类型：
--
作者：
Morales, Leo S.;Flowers, Claudia;Teresi, Jeanne A.
目的：使用英语和西班牙语版本的简易精神状态检查（MMSE）来说明区分项目和测试功能（DFIT）方法的应用。受试者：研究参与者年龄≥ 65岁，居住在纽约北曼哈顿。在1578名参与者中，有665人用西班牙语完成了MMSE测试。测量：MMSE包含20个项目，用于测量定向、注意力和计算、注册、回忆和语言方面的认知障碍程度，以及遵循口头和书面命令的能力。在评估MMSE量表的维度后，使用Same-jima的2参数分级反应模型分别估计英语和西班牙语样本的项目反应理论人和项目参数。结果：9个项目表现出差异性功能;这些项目要求被调查者说出正确的季节、月份、城市、州和附近的两条街道，回忆3个物体，重复短语“没有如果，没有而且，没有但是”，遵循命令，“闭上眼睛，又吩咐说，右手拿这纸，两手把纸对折，放在膝上。“然而，在量表水平上，MMSE没有显示出差异功能。
Objectives: To illustrate the application of the Differential Item and Test Functioning (DFIT) method using English and Spanish versions of the Mini-Mental State Examination (MMSE). Subjects: Study participants were 65 years of age or older and lived in North Manhattan, New York. Of the 1578 study participants who were administered the MMSE 665 completed it in Spanish.Measures: The MMSE contains 20 items that measure the degree of cognitive impairment in the areas of orientation, attention and calculation, registration, recall and language, as well as the ability to follow verbal and written commands.Research Design: After assessing the dimensionality of the MMSE scale, item response theory person and item parameters were estimated separately for the English and Spanish sample using Same-jima's 2-parameter graded response model. Then the DFIT framework was used to assess differential item functioning (DIF) and differential test functioning (DTF).Results: Nine items were found to show DIF; these were items that ask the respondent to name the correct season, day of the month, city, state, and 2 nearby streets, recall 3 objects, repeat the phrase no ifs, no ands, no buts, follow the command, "close your eyes," and the command, "take the paper in your right hand, fold the paper in half with both hands, and put the paper down in your lap." At the scale level, however, the MMSE did not show differential functioning.