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THE ADDICTION SEVERITY INDEX

The ASI at 25: Read how historical and practical considerations have improved the instrument over time.

The ASI is an assessment instrument designed to be administered as a semi-structured interview in one hour or less to patients who present for substance abuse treatment. The instrument gathers information about seven areas of a patient’s life: medical, employment/support, drug and alcohol use, legal, family history, family/social relationships, and psychiatric problems. Using a ten point scale from 0 to 9, interviewer severity ratings indicate the degree of patient problems in each of the seven problem areas, based on historical and current information. Composite scores are based entirely on current information and are indicators of the present status of the patient; they are thus useful for treatment outcome studies, since successive Composite scores can be used to summarize changes in patient status.

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For Researchers: How to Calculate ASI Composite Scores
ASI Training

The ASI was developed in 1980 by A. Thomas McLellan and collaborators from the University of Pennsylvania’s Center for the Studies of Addiction. The availability of this, the first standardized, multidimensional assessment instrument transformed research, policy and practice in substance abuse. More About the ASI.

Drug Evaluation Network System (DENS™) ASI Software CD
The DENS Software CD is an electronic ASI data collection system created with substance abuse treatment providers in mind. It automates administration of the ASI through an intuitive, time-saving interface used mainly by counselors at treatment facilities. The software takes very little time to learn and has a host of benefits unavailable to states and/or programs currently using paper and pencil instruments. More

DENS can be ordered electronically or by mail.


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