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Refining the Construct of Narcissistic Personality Disorder: Diagnostic Criteria and Subtypes

OBJECTIVE: Narcissistic personality disorder has received relatively little empirical attention. This study was designed to provide an empirically valid and clinically rich portrait of narcissistic personality disorder and to identify subtypes of the disorder. METHOD: A random national sample of psychiatrists and clinical psychologists (N=1,201) described a randomly selected current patient with personality pathology. Clinicians provided detailed psychological descriptions of the patients using the Shedler-Westen Assessment Procedure-II (SWAP-II), completed a checklist of axis II diagnostic criteria, and provided construct ratings for each axis II personality disorder. Descriptions of narcissistic patients based on both raw and standardized SWAP-II item scores were aggregated to identify, respectively, the most characteristic and the most distinctive features of narcissistic personality disorder. RESULTS: A total of 255 patients met DSM-IV criteria for narcissistic personality disorder based on the checklist and 122 based on the construct ratings; 101 patients met criteria by both methods. Q-factor analysis identified three subtypes of narcissistic personality disorder, which the authors labeled grandiose/malignant, fragile, and high-functioning/exhibitionistic. Core features of the disorder included interpersonal vulnerability and underlying emotional distress, along with anger, difficulty in regulating affect, and interpersonal competitiveness, features that are absent from the DSM-IV description of narcissistic personality disorder. CONCLUSIONS: These findings suggest that DSM-IV criteria for narcissistic personality disorder are too narrow, underemphasizing aspects of personality and inner experience that are empirically central to the disorder. The richer and more differentiated view of narcissistic personality disorder suggested by this study may have treatment implications and may help bridge the gap between empirically and clinically derived concepts of the disorder.

This article has been cited by other articles:

				J. Kay Toward a Clinically More Useful Model for Diagnosing Narcissistic Personality Disorder Am J Psychiatry, November 1, 2008; 165(11): 1379 - 1382. [Full Text] [PDF]

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