Self - report data is notoriously unreliable, and a symptom of narcissism is delusional thought processes so the data self - reported by the narcissist would likely be at odds with the reality, and no other students would be able to determine if another person had DSM
IV narcissistic personality disorder in a five minute interaction.
Prevalence, Correlates, Disability, and Comorbidity of DSM -
IV Narcissistic Personality Disorder.
Not exact matches
The patients were all male and had a DSM -
IV diagnosis of Antisocial, Borderline,
Narcissistic, or Paranoid
Personality Disorder, or significant traits of these
disorders («Cluster B
Personality Disorder Not Otherwise Specified»).
According to the Diagnostic and Statistical Manual of Mental
Disorders (DSM
IV), negative or unstable self - perceptions are a key component in the diagnostic criteria of major depressive
disorders, manic and hypomanic episodes, dysthymic
disorders, dissociative
disorders, anorexia nervosa, bulimia nervosa, and in
personality disorders, such as borderline,
narcissistic and avoidant behavior.
Prevalence estimates for
narcissistic personality disorder, based on DSM -
IV definitions, range from 0 % to 6.2 % in community samples.