Real and Artificial Differential Item Functioning in Polytomous Items
نویسندگان
چکیده
منابع مشابه
Differential item functioning procedures for polytomous items when examinee sample sizes are small
As part of test score validity, differential item functioning (DIF) is a quantitative characteristic used to evaluate potential item bias. In applications where a small number of examinees take a test, statistical power of DIF detection methods may be affected. Researchers have proposed modifications to DIF detection methods to account for small focal group examinee sizes for the case when item...
متن کاملGender bias in the sixteen-item Anxiety Sensitivity Index: an application of polytomous differential item functioning.
Gender differences in measures of anxiety sensitivity (AS) are similar to gender differences across anxiety disorders; females exhibit higher levels of AS and a greater prevalence of anxiety disorders than males. The current study confirms higher scores on the Anxiety Sensitivity Index (ASI) in females. Further analysis reveals, however, that gender differences on the ASI may arise from a singl...
متن کاملan exploratory study of differential item functioning (dif) in efl reading comprehension
بررسی دلایل عملکرد متفاوت سوالات آزمون درک مطلب به زبان خارجی تاریخچه ی تحقیق درباره ی منابع عملکرد مختلف سوالات (دیف) در آزمون درک مطلب پر است از مجموعه ای از متغیرهای فرضیه ای که چند مورد از مهمترین آنها عبارتند از: جنسیت، آشنایی با موضوع متن، علاقه به موضوع یا محتوای متن، حدس زدن، و عوامل بافت اجتماعی (پی 2004؛ زومبو و گلین 2005). مطالعه حاضر با استناد به فلسفه ی انکارپذیری پوپر عوامل ذکر...
15 صفحه اولItem-focussed Trees for the Identification of Items in Differential Item Functioning.
A novel method for the identification of differential item functioning (DIF) by means of recursive partitioning techniques is proposed. We assume an extension of the Rasch model that allows for DIF being induced by an arbitrary number of covariates for each item. Recursive partitioning on the item level results in one tree for each item and leads to simultaneous selection of items and variables...
متن کاملEvaluating the Multiple-Group Mean and Covariance Structure Analysis model for the detection of Differential Item Functioning in polytomous ordered items
reat to the validity of a test. Both the APA (American Psychological Association) and the ITC (International Test Commission) standards emphasize the necessity of checking for DIF in order to guarantee the fair use of a test (AERA, APA, NCME, 1999; COPITC, 2000). With these recommendations in mind, and with the intention of spreading the application of DIF analyses, researchers should develop a...
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ژورنال
عنوان ژورنال: Educational and Psychological Measurement
سال: 2014
ISSN: 0013-1644,1552-3888
DOI: 10.1177/0013164414534258