Personality Disorders
DSM-IV-TR Personality Disorders | All Mental Disorders

The Personality Project:Taxonomies of Individual Differences
William Revelle, PhD, Director, Graduate Program in Personality, Department of Psychology, Northwestern University

• Taxonomies of Individual Differences
• Psychometrics and Personality Assessment
• Intelligence: Personality and Ability

Personality Disorders Common in U.S.

By Kathleen Doheny
HealthDay Reporter

FRIDAY, Aug. 6, 2004 (HealthDayNews) -- Personality disorders are much more common in the United States than researchers had thought, affecting nearly one in seven adult Americans, a new survey finds.

Researchers say that 31 million people, or 15 percent of the adult population, suffer from at least one type of personality disorder.

Roughly half of these people had obsessive-compulsive disorder (OCD), and a sizable minority were paranoid and harbored an unusual distrust of others, according to the review.

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