scholarly journals Gender-Related Differential Item Functioning of 2015 Wassce Core Mathematics Results in Southern Ghana Using Logistic Regression Procedure

2020 ◽  
Vol 16 (16) ◽  
Author(s):  
Ruth Annan Brew ◽  
Andrews Cobbinah
Keyword(s):  
Logistic Regression ◽  
Differential Item Functioning ◽  
Regression Procedure ◽  
Item Functioning ◽  
Logistic Regression Procedure ◽  
Southern Ghana

scholarly journals Differential Item Functioning on Raven’s SPM+ Amongst Two Convenience Samples of Yakuts and Russians

Psych ◽  
2020 ◽  
Vol 2 (1) ◽  
pp. 44-51
Author(s):  
Vladimir Shibaev ◽  
Andrei Grigoriev ◽  
Ekaterina Valueva ◽  
Anatoly Karlin
Keyword(s):  
Logistic Regression ◽  
Differential Item Functioning ◽  
Suitable Alternative ◽  
Cultural Contexts ◽  
Item Functioning ◽  
Sample Data ◽  
Psychometric Measurements ◽  
Raven's Standard Progressive Matrices ◽  
Raven's Progressive Matrices

National IQ estimates are based on psychometric measurements carried out in a variety of cultural contexts and are often obtained from Raven’s Progressive Matrices tests. In a series of studies, J. Philippe Rushton et al. have argued that these tests are not biased with respect to ethnicity or race. Critics claimed their methods were inappropriate and suggested differential item functioning (DIF) analysis as a more suitable alternative. In the present study, we conduct a DIF analysis on Raven’s Standard Progressive Matrices Plus (SPM+) tests administered to convenience samples of Yakuts and ethnic Russians. The Yakuts scored lower than the Russians by 4.8 IQ points, a difference that can be attributed to the selectiveness of the Russian sample. Data from the Yakut (n = 518) and Russian (n = 956) samples were analyzed for DIF using logistic regression. Although items B9, B10, B11, B12, and C11 were identified as having uniform DIF, all of these DIF effects can be regarded as negligible (R2 <0.13). This is consistent with Rushton et al.’s arguments that the Raven’s Progressive Matrices tests are ethnically unbiased.

Differential item functioning of the Arm function in Multiple Sclerosis Questionnaire (AMSQ) by language, a study in six countries

2019 ◽  
Vol 27 (1) ◽  
pp. 90-96 ◽  
Author(s):  
Nynke F Kalkers ◽  
Ingrid Galan ◽  
Anne Kerbrat ◽  
Andrea Tacchino ◽  
Christian P Kamm ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Logistic Regression ◽  
Differential Item Functioning ◽  
International Studies ◽  
Logistic Regression Models ◽  
Item Functioning ◽  
Arm Function ◽  
Monitoring Treatment ◽  
Group Variable ◽  
Monitoring Treatment Response

Background: The Arm function in Multiple Sclerosis Questionnaire (AMSQ) has been developed as a self-reported measure of arm and hand functioning for patients with multiple sclerosis (MS). The AMSQ was originally developed in Dutch and to date translated into five languages (i.e. English, German, Spanish, French, and Italian). Objective: The aim of this study was to evaluate differential item functioning (DIF) of the AMSQ in these languages. Methods: We performed DIF analyses, using “language” as the polytomous group variable. To detect DIF, logistic regression and item response theory principles were applied. Multiple logistic regression models were evaluated. We used a pseudo R2 value of 0.02 or more as the DIF threshold. Results: A total of 1733 male and female patients with all subtypes of MS were included. The DIF analysis for the whole dataset showed no uniform or non-uniform DIF on any of the 31 items. All R2 values were below 0.02. Conclusion: The AMSQ is validated in six languages. All items have the same meaning to MS patients in Dutch, English, German, Spanish, French, and Italian. This validation study enables use of the AMSQ in international studies, for monitoring treatment response and disease progression.

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