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Article
Differential Item Functioning of the Symptoms of Major Depression by Race and Ethnicity: An Item Response Theory Analysis
This study examines the psychometric properties, and particularly differential item functioning (DIF) due to racial and ethnic group, of the criteria for a major depressive episode using a large sample (N = 1,063...
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Article
The Diagnostic Utility of Separation Anxiety Disorder Symptoms: An Item Response Theory Analysis
At present, it is not clear whether the current definition of separation anxiety disorder (SAD) is the optimal classification of developmentally inappropriate, severe, and interfering separation anxiety in you...
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Article
The Relevance of Age of Onset to the Psychopathology of Social Phobia
The present study aimed to examine the relevance of age of onset to the psychopathology of social phobia using a large clinical sample of 210 patients with social phobia. The two most common periods of onset w...