Dissociative identity disorder (formerly known as multiple personality disorder) was extremely rare before the 1950s, but by the 1990s, some therapists were reporting many cases of this disorder. What is the most likely reason for the increase in this disorder?

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Quizplus · Accepted Answer

There is no evidence to support the idea that environmental toxins, the Southeast Asian Flu, or a genetic mutation caused an increase in dissociative identity disorder. However, there were changes in how therapists diagnosed and treated the disorder during the 20th century, and some researchers believe that the increase in reported cases may be due to therapists unintentionally suggesting the existence of multiple personalities to their patients. This is known as therapist-induced dissociative identity disorder.

Dissociative Identity Disorder (Formerly Known as Multiple Personality Disorder) Was