Sexual and physical child abuse and the developtnent of dissociative personality traits. Canadian and British evidence from adolescent child welfare and child care populations

An attempt was made to construct a measure of dissociative personality traits from file review of 61 Canadian adolescents with a known history of sexual abuse before the age of six. The study was then extended to 55 British adolescents in residential care and therapy centres. Between 18 and 29% of adolescents displayed several features of dissociative personality, implying the possibility of multiple personality disorder. Those with two or more indicators of dissociative personality style tended to have more problematic behavioural histories, including a particularly high prevalence of deliberate self-harm. In the UK group the Dissociative Experiences Scale (Bernstein and Putnam, 1986) completed by 55 adolescents correlated 0.67 with the dissociative personality trait index constructed from case file review. Implications for treatment of abused children are discussed.