Treatments of Differential Item Functioning: A Comparison of Four Methods. [PDF]
Educ Psychol Meas, 2022 Test fairness is critical to the validity of group comparisons involving gender, ethnicities, culture, or treatment conditions. Detection of differential item functioning (DIF) is one component of efforts to ensure test fairness.
Liu X, Jane Rogers H.
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Item-focussed Trees for the Identification of Items in Differential Item Functioning [PDF]
Psychometrika, 2015 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.
Gerhard Tutz, Moritz Berger
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Examination of Gender-Related Differential Item Functioning Through Poly-BW Indices [PDF]
Frontiers in Psychology, 2022 The existing differential item functioning (DIF) detection approaches relying on item difficulty or item discrimination are limited for understanding the associates of DIF items, and consequently, DIF items were conventionally either deleted or ignored ...
Tsai-Wei Huang +3 more
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Semi-automated Rasch analysis with differential item functioning. [PDF]
Behav Res Methods, 2023 Rasch analysis is a procedure to develop and validate instruments that aim to measure persons' traits. However, manual Rasch analysis is a complex and time-consuming task, even more so when the possibility of differential item functioning (DIF) is taken into consideration.
Wijayanto F +5 more
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Differential Item Functioning and its Relevance to Epidemiology [PDF]
Current Epidemiology Reports, 2019 In this review I trace the origins, applications, limitations and future prospects for research on measurement item bias, or differential item functioning (DIF) in the context of health research. DIF arises in the context of using multiple item or symptom health instruments to rate the level of a particular condition, and describes the situation where ...
Richard N. Jones
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Exploring differential item functioning in the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) [PDF]
BMC Musculoskeletal Disorders, 2012 Background The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) is a widely used patient reported outcome in osteoarthritis. An important, but frequently overlooked, aspect of validating health outcome measures is to establish if ...
Pollard Beth +2 more
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Differential item functioning in the figure classification test
SA Journal of Industrial Psychology, 1998 The elimination of unfair discrimination and cultural bias of any kind, is a contentious workplace issue in contemporary South Africa. To ensure fairness in testing, psychometric instruments are subjected to empirical investigations for the detection of ...
E. van Zyl, D. Visser
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Use of differential item functioning (DIF) analysis for bias analysis in test construction
SA Journal of Industrial Psychology, 2004 When differential item functioning (DIF) item analysis procedures based on item response theory (IRT) are used during test construction, it is possible to draw item characteristic curves for the same item for different subgroups.
Marié De Beer
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Evaluation of psychometric properties of the Dental Anxiety Inventory (DAI‐36) questionnaire using iterative hybrid ordinal logistic: Differential item functioning (DIF) [PDF]
Brain and Behavior, 2023 Objectives Dental Anxiety Inventory (DAI‐36) questionnaire is an instrument for assessing dental anxiety. The different perceptions of the questionnaire items in the individual at the same level of underlying dental anxiety may lead to different reported
Narges Roustaei, Elahe Allahyari
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Sex differences in PTSD symptoms: A differential item functioning approach. [PDF]
Psychological Trauma, 2018 Objective: Evidence has suggested there are sex differences in posttraumatic stress disorder (PTSD) symptom expression; however, few studies have assessed whether these differences are due to measurement invariance.
Siobhán Murphy +4 more
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