scholarly journals Differential Item Functioning Analysis of United Stated Medical Licensing Examination Step 1 Items

2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Jonathan D. Rubright ◽  
Michael Jodoin ◽  
Stephanie Woodward ◽  
Michael A. Barone
Keyword(s):  
Differential Item Functioning ◽  
Item Functioning ◽  
Medical Licensing ◽  
Differential Item Functioning Analysis ◽  
Licensing Examination

scholarly journals Differential item functioning analysis of the Vanderbilt Expertise Test for cars

2015 ◽  
Vol 15 (13) ◽  
pp. 23 ◽  
Author(s):  
Woo-Yeol Lee ◽  
Sun-Joo Cho ◽  
Rankin W. McGugin ◽  
Ana Beth Van Gulick ◽  
Isabel Gauthier
Keyword(s):  
Differential Item Functioning ◽  
Item Functioning ◽  
Differential Item Functioning Analysis

Equivalence and Bias in the South African Substance Use Contextual Risk Instrument

2017 ◽  
Vol 120 (1) ◽  
pp. 158-178
Author(s):  
Ishreen Rawoot ◽  
Maria Ann Florence
Keyword(s):  
Substance Use ◽  
Differential Item Functioning ◽  
South African ◽  
Economic Status ◽  
Scale Level ◽  
Contextual Risk ◽  
Item Functioning ◽  
Differential Item Functioning Analysis ◽  
Preventative Interventions ◽  
Phi Coefficient

This article forms part of a larger study that sought to develop and validate a scale to measure individual and contextual factors associated with adolescent substance use in low-socio-economic status South African communities. The scale was developed to inform the process of designing preventative interventions in these communities. This study assessed the construct equivalence and item bias across different language versions of the scale. Exploratory factor analysis, equality of reliabilities, and the Tucker’s phi coefficient of congruence were employed to assess whether the two language versions were equivalent at a scale level. Differential item functioning analysis was conducted using ordinal logistic regression and the Mantel-Haenszel method at an item level. The findings revealed that there are significant differences between the two groups at a scale level. Items were flagged as presenting with moderate to large differential item functioning. The biased items have to be closely examined in order to decide how to address the bias.

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