RIM: A Random Item Mixture Model to Detect Differential Item Functioning
نویسندگان
چکیده
منابع مشابه
Multiple Ways to Detect Differential Item Functioning in SAS
Differential item functioning (DIF), as an assessment tool, has been widely used in quantitative psychology, educational measurement, business management, and insurance and healthcare industries. The purpose of DIF analyses is to detect response differences of items in questionnaires, rating scales, or tests across different subgroups (e.g., gender), while controlling for ability level. There a...
متن کاملA 37-item shoulder functional status item pool had negligible differential item functioning.
OBJECTIVE Measures of shoulder function may differ by dominance of affected shoulder, surgical history, gender, or race. We present a technique for determining whether observed differences in function between groups are due to biased test items or real differences in function. STUDY DESIGN AND SETTING Four hundred patients who were receiving rehabilitation for a variety of shoulder impairment...
متن کاملUsing Multiple-Variable Matching to Identify EFL Ecological Sources of Differential Item Functioning
Context is a vague notion with numerous building blocks making language test scores inferences quite convoluted. This study has made use of a model of item responding that has striven to theorize the contextual infrastructure of differential item functioning (DIF) research and help specify the sources of DIF. Two steps were taken in this research: first, to identify DIF by gender grouping via l...
متن کاملLatent variable mixture models to test for differential item functioning: a population-based analysis
BACKGROUND Comparisons of population health status using self-report measures such as the SF-36 rest on the assumption that the measured items have a common interpretation across sub-groups. However, self-report measures may be sensitive to differential item functioning (DIF), which occurs when sub-groups with the same underlying health status have a different probability of item response. This...
متن کاملA penalty approach to differential item functioning in Rasch models.
A new diagnostic tool for the identification of differential item functioning (DIF) is proposed. Classical approaches to DIF allow to consider only few subpopulations like ethnic groups when investigating if the solution of items depends on the membership to a subpopulation. We propose an explicit model for differential item functioning that includes a set of variables, containing metric as wel...
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ژورنال
عنوان ژورنال: Journal of Educational Measurement
سال: 2010
ISSN: 0022-0655
DOI: 10.1111/j.1745-3984.2010.00122.x