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J Subst Abuse Treat. 2013 Nov-Dec;45(5):444-50. doi: 10.1016/j.jsat.2013.06.003. Epub 2013 Jul 23.

Addiction Severity Index (ASI) summary scores: comparison of the Recent Status Scores of the ASI-6 and the Composite Scores of the ASI-5.

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  • 1Treatment Research Institute, Philadelphia, PA 19106, USA; Department of Psychiatry, Treatment Research Center, University of Pennsylvania, Philadelphia, PA 19104, USA.


The characteristics and the validity of the Recent Status Scores (RSSs), the new summary scores generated by the sixth version of the Addiction Severity Index (ASI-6), are compared to the fifth version of the ASI summary scores, the Composite Scores (CSs). A sample of 82 randomly selected patients from substance abuse treatment programs were interviewed with the ASI-6, the ASI-5 and were administered a validity battery of questionnaires that included measures corresponding to each of the ASI domains. Each ASI-6 RSS was significantly correlated with its corresponding ASI-5 CS. The intercorrelations among the RSSs are low and none of these correlations were statistically different from the intercorrelations among CSs. In five of the seven areas, the ASI-6 RSSs were more highly correlated to the corresponding validity measures than were the ASI-5 CSs. The ASI-6 offers more comprehensive content in its scales than do those derived with earlier ASIs.

© 2013.


Addiction Severity Index; Assessment; Measurement; Validity

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