Among the initial effects of sexual abuse (i.e., effects occurring within the first 2 years following the abuse; Browne & Finkelhor, 1986), higher rates of depression, loneliness, and suicidal ideation have been identified in victim samples. Many victims show the symptomatology of post-traumatic stress disorder (PTSD) as an immediate reaction and/or as a long-term consequence of the abuse. Indeed, Kendall-Tackett, Williams, and Finkelhor (1993) conclude that PTSD is one of two core symptoms that seem to be more common in victims of abuse than in other clinical groups and carry particular diagnostic relevance (the second core symptom being sexualized behavior, described subsequently). Behavioral problems, such as sleep disturbances, hyperactivity, and aggression, are also common as initial responses to the trauma of sexual abuse. Victims often attempt to dissociate themselves from the experience of abuse and deny feelings of shame and anger, a coping strategy that makes them susceptible to the development of dissociative personality disorders. Furthermore, lowered self-esteem and feelings of worthlessness seem to be common reactions to the experience of sexual abuse.