The Addiction Severity Index, Lite version (ASI-Lite) is a shortened version of the Addiction Severity Index (ASI) and it is used to obtain lifetime information about problem behaviours, as well as problems within the previous 30 days.
The ASI is a semi-structured instrument used in face-to-face interviews conducted by clinicians, researchers or trained technicians. The ASI covers the following areas: medical, employment/support, drug and alcohol use, legal, family/social, and psychiatric. The ASI obtains lifetime information about problem behaviours, as well as problems within the previous 30 days. The ASI-Lite contains 22 fewer questions than the ASI, and omits items relating to severity ratings, and a family history grid.