Differential Item Functioning (DIF)
Use of differential item functioning (DIF) analysis for bias analysis in test construction
... an item is a monotonically increasing curve (Hambleton & Slater, ...investigating item bias – also referred to as differential item functioning ...an item plots the ...
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Differential item functioning of the CESDR-R and GAD-7 in African and white working adults
... Differential item functioning was investigated using ordinal logistic regression as implemented in the lordif package (Choi, Gibbons, & Crane, 2011, version ...each item to investigate ...
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Differential Item Functioning in Online Learning Instrument (EPFun)
... of Differential Item Functioning (DIF) (Cauffman & MacIntosh, 2006; Hanizah et ...the item structure and arrangement with the aim of eliminating or reducing any gender ...the item ...
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An overview of differential item functioning in multistage computer adaptive testing using three-parameter logistic item response theory
... of differential item functioning (DIF) in MSCAT using three-parameter logistic item response theory (IRT), offering suggestions to implement it in practice with a hope to motivate testing and ...
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Differential item functioning of the UWES-17 in South Africa
... in item scores between two groups that match on the concept of interest (Zumbo, ...that item content may need ...potential item bias or differential item functioning in respect ...
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Differential item functioning in quality of life measurement:an analysis using anchoring vignettes
... across a range of health and medical research settings. They are commonly used to assess effectiveness, inequalities and general health status; however, as these measures are by nature subjective, response categories can ...
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Differential item functioning and ad hoc interpretations
... She and I spent the better part of an afternoon devising elaborate and ostensibly convincing theories about why six particular items on the Metropolitan Achievement Test were behaving differentially for Black examinees, ...
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Comparison of Objective and Subjective Methods on Determination of Differential Item Functioning
... of differential item functioning (DIF) and the subjective method based on the opinions of the experts which are not used so often in ...one item indicates moderate or high level of DIF for ...
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Statistical and extra-statistical considerations in differential item functioning analyses
... of item bias was introduced to the psychometric world in the United States in the ...term item bias has been superseded by differential item functioning ...an item (in tests of ...
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Comparison of Parametric and Nonparametric Item Response Techniques in Determining Differential Item Functioning in Polytomous Scale
... Abstract :This study aims to compare parametric and nonparametric methods based on Item Response Theory in determining differential item functioning in polytomous scales. DIF analysis based on ...
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Use of mantel haenszel differential item functioning in detecting item bias in a chemistry achievement test in four ethnic groups in Nigeria
... that item analysis helps to make better decisions about the students (test takers), the instruction, and the test ...is differential item functioning approach or method ...denotes, ...
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Differential item functioning of the SF-12 in a population-based regional joint replacement registry
... However, differential item functioning (DIF) may affect the accurate interpretation of differences in HRQoL amongst patients with different demographic and health status characteristics but the same ...
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Ethnic differential item functioning in the assessment of quality of life in cancer patients
... of differential item functioning was made using the PARSCALE ...Each item difficulty was compared across all four groups and the items that showed statistically significant differences ...
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Using differential item functioning to evaluate potential bias in a high stakes postgraduate knowledge based assessment
... evaluating item-level bias is to test for Differential Item Functioning (DIF), which takes into account differences at every level of candidate ability [16, ...
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Using Statistical and Judgmental Reviews to Identify and Interpret Translation Differential Item Functioning
... Items displaying differential item functioning (DIF) were flagged using three popular statistical methods—ManteTHaenszel, Simultaneous Item Bias Test, and logistic regression—and the s[r] ...
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Cultural Imperatives in Differential Item Functioning (DIF) in Mathematics
... differentially functioning items should be deleted in order to get a fair ...differentially functioning item it must be the following concern to test whether elimination of these items contributed to ...
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A confirmatory study of Differential Item Functioning on EFL reading comprehension
... It goes without saying that guessing is a hypothetical source of DIF in an MC test. In this study, the test takers were asked to inform the researcher whether for each passage with five items, they answered a particular ...
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Re-evaluating a vision-related quality of life questionnaire with item response theory (IRT) and differential item functioning (DIF) analyses
... mate item parameters for subgroups; those parameters can subsequently be used to estimate the person para- meter ( θ s ) ...the item; if there was DIF between more than one subgroup variable; or if DIF was ...
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Item response analysis of the Geriatric Anxiety Inventory among the elderly in China: dimensionality and differential item functioning test
... the differential item functions across sex, MMSE (The Mini-Mental State Examination) and MADRS (The Montgomery–Asberg Depression Rating Scale) ...no item had a substantial bias across those ...
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A reexamination of Lord's Wald test for differential item functioning using item response theory and modern error estimation
... Although Penfield’s (2001) study provided evidence that a MH method, specifically GMH, can effectively detect DIF among more than two groups, there are several limitations. First, Penfield’s investigation considered ...
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