Abstract Behavior analytic accounts of Dissociative Identity Disorder, formerly known as Multiple Personality Disorder, are rarely presented in depth. This lack of recognition is due to misunderstanding the applicability of the behavior analytic position on personality, abnormality, and related issues. Arguments are made here that a behavioral analysis of Dissociative Identity Disorder demystifies and clarifies these behaviors. Behavior analysts can communicate to a wider audience by addressing more phenomena of a clinical and popular interest.