Which of the following explains why dissociative identity disorder was not diagnosed before 1980?

A) The symptoms were rarely reported prior to 1980.
B) There was no such diagnostic category in the DSM-II.
C) The disorder lacked empirical evidence until after 1980.
D) No DSM existed prior to 1980.

Before 1980

Referring to events or conditions that occurred prior to the year 1980.

Dissociative Identity Disorder

A disorder characterized by the presence of two or more distinct personality states or identities that control an individual's behavior in different situations.

Diagnostic Category

A class of medical or psychological conditions defined by a specific set of symptoms and criteria.