A Comparison of Methods for Estimating Conditional Item Score Difference in Differential Item Functioning (DIF) Assessments
نویسندگان
چکیده
منابع مشابه
A confirmatory study of Differential Item Functioning on EFL reading comprehension
The present study aimed at investigating DIF sources on an EFL reading comprehension test. Accordingly, 2 DIF detection methods, logistic regression (LR) and item response theory (IRT), were used to flag emergent DIF of 203 (110 females & 93 males) Iranian EFL examinees’ performance on a reading comprehension test. Seven hypothetical DIF sources were examin...
متن کاملDifferential Item Functioning (DIF) in Terms of Gender in the Reading Comprehension Subtest of a High-Stakes Test
Validation is an important enterprise especially when a test is a high stakes one. Demographic variables like gender and field of study can affect test results and interpretations. Differential Item Functioning (DIF) is a way to make sure that a test does not favor one group of test takers over the others. This study investigated DIF in terms of gender in the reading comprehension subtest (35 i...
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 کاملInterpreting the Validity of a High-Stakes Test in Light of the Argument-Based Framework: Implications for Test Improvement
The validity of large-scale assessments may be compromised, partly due to their content inappropriateness or construct underrepresentation. Few validity studies have focused on such assessments within an argument-based framework. This study analyzed the domain description and evaluation inference of the Ph.D. Entrance Exam of ELT (PEEE) sat by Ph.D. examinees (n = 999) in 2014 in Iran....
متن کاملGender-based DIF across the Subject Area: A Study of the Iranian National University Entrance Exam
This study aimed at investigating differential item functioning (DIF) on the Special English Test of the Iranian National University Entrance Exam (INUEE). The effect of gender and subject area was taken into account. The study utilized one-parameter IRT model with a sample of 36000 students who sat for the INUEE Special English Test in 2004 and/or 2005. The findings confirmed the presence of D...
متن کامل