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Parent Ratings of ADHD Symptoms: Generalized Partial Credit Model Analysis of Differential Item Functioning Across Gender

Citation

Gomez, R, Parent Ratings of ADHD Symptoms: Generalized Partial Credit Model Analysis of Differential Item Functioning Across Gender, Journal of Attention Disorders, 16, (4) pp. 276-283. ISSN 1087-0547 (2012) [Refereed Article]


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Copyright Statement

Copyright 2012 SAGE Publications

DOI: doi:10.1177/1087054710383378

Abstract

Objective: Generalized partial credit model, which is based on item response theory (IRT), was used to test differential item functioning (DIF) for the Diagnostic and Statistical Manual of Mental Disorders (4th ed.), inattention (IA), and hyperactivity/ impulsivity (HI) symptoms across boys and girls. Method: To accomplish this, parents completed an ADHD rating scale for 403 boys and 380 girls, between 6 and 11 years of age. Results: The findings indicated no DIF for all the slope parameters for both the IA and HI symptoms. For location parameters, there was no DIF for all the IA symptoms and for seven of the nine HI symptoms. However, the effect sizes for the DIF symptoms were small. Thus, there was good support for gender equivalency for the ADHD symptoms. Conclusion: These findings extend existing data on gender equivalency of ADHD symptoms, obtained using other methodologies for testing measurement equivalency.

Item Details

Item Type:Refereed Article
Keywords:ADHD, differential item function, gender invariance, item response theory, generalized partial credit model
Research Division:Psychology and Cognitive Sciences
Research Group:Psychology
Research Field:Health, Clinical and Counselling Psychology
Objective Division:Health
Objective Group:Public Health (excl. Specific Population Health)
Objective Field:Mental Health
Author:Gomez, R (Professor Rapson Gomez)
ID Code:77737
Year Published:2012
Web of Science® Times Cited:1
Deposited By:Psychology
Deposited On:2012-05-23
Last Modified:2016-09-30
Downloads:0

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