Therapy for acute posttrauma stress after recent sexual assault

INTERVENTION: Cognitive processing therapy (CPT): participants receive 6 weekly sessions of a trauma‐focussed cognitive behavioural psychological therapy, with each session being 90min duration. Therapy is conducted one on one with counsellor (social worker). Cognitive behavioural therapy techniques involves helping participants modify unhelpful beliefs that contribute to anxiety and stress, and methods to reduce the frequency and distress associated with trauma memories. CONDITION: acute posttraumatic stress depression PRIMARY OUTCOME: Primary outcome 1: Mean posttraumatic stress disorder (PTSD) severity score derived from the Clinician‐Administered PTSD Scale. Primary outcome 2: Mean PTSD severity score on PTSD Checklist. SECONDARY OUTCOME: Secondary outcome: Mean Beck depression score. INCLUSION CRITERIA: Has experienced a sexual assault within past 4 weeks and is diagnosed with Acute Stress Disorder.