OBJECTIVE: This study examined aspects of reliability, validity and utility of Addiction Severity Index (ASI) data as administered to clients with severe and persistent mental illness (SMI) and concurrent substance abuse disorders enrolled in a publicly-funded community mental health center. METHODS: A total of 62 clients with SMI volunteered to participate in an interobserver and test-retest reliability study of the ASI. Spearman-Brown and Pearson correlation coefficients were calculated to examine the extent of agreement among client responses. RESULTS: Overall 16% of the composite scores could not be calculated due to missing data and 31% of the clients misunderstood or confused items in at least one of the seven ASI domains. As a whole, the interobserver reliability of the ASI composite scores for those subjects where sufficient data were available was satisfactory. However, there was more variance in the stability of client responses, with four composite scores producing test-retest reliability coefficients below .65. CONCLUSION: Evidence from this study suggests that the ASI has a number of limitations in assessing the problems of clients with severe and persistent mental illness, and it is likely that other similar instruments based on the self-reports of persons with severe and persistent mental illness would also encounter these limitations.
OBJECTIVE: This study examined aspects of reliability, validity and utility of Addiction Severity Index (ASI) data as administered to clients with severe and persistent mental illness (SMI) and concurrent substance abuse disorders enrolled in a publicly-funded community mental health center. METHODS: A total of 62 clients with SMI volunteered to participate in an interobserver and test-retest reliability study of the ASI. Spearman-Brown and Pearson correlation coefficients were calculated to examine the extent of agreement among client responses. RESULTS: Overall 16% of the composite scores could not be calculated due to missing data and 31% of the clients misunderstood or confused items in at least one of the seven ASI domains. As a whole, the interobserver reliability of the ASI composite scores for those subjects where sufficient data were available was satisfactory. However, there was more variance in the stability of client responses, with four composite scores producing test-retest reliability coefficients below .65. CONCLUSION: Evidence from this study suggests that the ASI has a number of limitations in assessing the problems of clients with severe and persistent mental illness, and it is likely that other similar instruments based on the self-reports of persons with severe and persistent mental illness would also encounter these limitations.
Authors: John M Brion; Carol Dawson Rose; Patrice K Nicholas; Rick Sloane; Inge B Corless; Teri G Lindgren; Dean J Wantland; Jeanne K Kemppainen; Elizabeth F Sefcik; Kathleen M Nokes; Kenn M Kirksey; Lucille Eller; Mary Jane Hamilton; William L Holzemer; Carmen J Portillo; Marta Rivero Mendez; Linda M Robinson; Shahnaz Moezzi; Maria Rosa; Sarie Human; Mary Maryland; John Arudo; Ana Viamonte Ros; Thomas P Nicholas; Yvette Cuca; Emily Huang; Catherine Bain; Lynda Tyer-Viola; Sheryl M Zang; Maureen Shannon; Angelleen Peters-Lewis; Suzanne Willard Journal: Nurs Health Sci Date: 2011-03 Impact factor: 1.857
Authors: Roger D Weiss; Margaret L Griffin; William B Jaffee; Rachel E Bender; Fiona S Graff; Robert J Gallop; Garrett M Fitzmaurice Journal: Drug Alcohol Depend Date: 2009-07-01 Impact factor: 4.492