The Dynamic Appraisal of Situational Aggression
The DASA is a structured measure that is used by unit staff to assist them assess risk of imminent (within the next 24 hours) aggression by patients in psychiatric hospitals and other secure settings. It comprises seven items: negative attitudes, impulsivity, irritability, verbal threats, sensitive to perceived provocation, easily angered when requests are denied, and unwillingness to follow directions. Daily assessments using the DASA involve a trained nurse scoring each of the seven items. Ratings typicaly take less than five minutes per patient. The seven items which comprise the DASA are all independently related to aggression. In the development study the DASA was shown to predict violence within 24 hours with an Area Under the Curve (AUC) of .82 (Ogloff & Daffern, 2006). The DASA is now being used in psychiatric hospitals in Australia, Singapore, the United Kingdom and the United States.
The DASA (Inpatient or Youth Versions) is available for purchase here.
Ogloff, J.R.P., & Daffern, M. (2006). The Dynamic Appraisal of Situational Aggression: An Instrument to Assess Risk for Imminent Aggression in Psychiatric Inpatients. Behavioral Sciences and the Law, 24, 799-813.