Dissociative identity disorder (DID) is often surrounded by controversy and misunderstanding. Clinicians have noted the role of trauma in the development of DID. It is characterized by the presence of two or more distinct personality states or an experience of possession. Consider the following statement regarding the prevalence and diagnostic criteria of DID:
Research on the prevalence of DID suggests that it is significantly underdiagnosed in clinical settings. Which of the following statements most accurately reflects a major finding in the contemporary understanding of dissociative identity disorder?