The Diagnostic And Statistical Manual Of Mental Disorders

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By using data originated from the 2001-2002 National Epidemiologic Survey on Alcohol and Related Conditions, Bridget F. Grant, Deborah S. Hasin, Frederick S. Stinson, Deborah A. Dawson, Patricia Chou, June Ruan, and Roger P. Pickering discovered that 14.79% of adults in the United States had a personality disorder (The Journal of Clinical Psychiatry, 2004). According to the American Psychiatric Association (2013), “a personality disorder is an enduring pattern of inner experience and behavior that deviates markedly from the expectations of the individual’s culture, is pervasive and inflexible, has an onset in adolescence or early adulthood, is stable over time, and leads to distress or impairment” (p. 645).
The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-V) identifies ten distinct personality disorders and groups them into three clusters which are established by “descriptive similarities” (American Psychiatric Association, 2013, p. 645). While grouping these personality disorders into three clusters often proves to be useful for educational and research purposes, this system “has serious limitations and has not been consistently validated” (American Psychiatric Association, 2013, p. 645).
Although narcissistic personality disorder is very common among individuals, accompanied by deficiencies in functioning and social abandonment, and often associated with other disorders, the least amount of research has been conducted on this particular
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