The Addiction Severity Index (ASI) is a semi-structured interview for substance abuse assessment and treatment planning. The ASI is designed to gather valuable information about areas of a client’s life that may contribute to their substance-abuse problems. The ASI was the first standardized assessment tool of its kind to measure the multiple dimensions of substance abuse.Today, the ASI is the most commonly used addiction assessment tool by state agencies and treatment providers.The ASI is conducted in an interview format by clinicians, researchers, and trained technicians worldwide.
