Addiction Severity Index

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Please find links to several free, downloadable versions of the ASI, training manuals to assist in the proper administration and coding of the instruments, and information regarding the calculation of the ASI Composite Scores.

For further information and assistance, please contact our free ASI Helpdesk at This email address is being protected from spambots. You need JavaScript enabled to view it. or call the ASI Helpline toll-free at 1-800-238-2433.


Instructions for downloading Instruments and Manuals: If you do not currently have ADOBE ACROBAT READER installed on your computer, you will need to download it first. It is free of charge and will quickly install on your computer by going to

Versions of the Addiction Severity Index (ASI):


ASI Manuals

Other Manuals


Excel Composite Score Program
– allows users to electronically calculate composite scores for each ASI section:

SPSS Composite Score Syntax
– allows users to calculate composite scores for each ASI section using SPSS