Psychometric performance of the 6th version of the Addiction Severity Index in Spanish (ASI-6).

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Summary of "Psychometric performance of the 6th version of the Addiction Severity Index in Spanish (ASI-6)."

This work analysed the psychometric properties of the 6th version of the Addiction Severity Index (ASI-6) translated and adapted to the Spanish language. A multicentre, observational and prospective design was used. A total of 258 participants were included, 217 were patients (35 stable patients and 182 unstable patients), and 41 were controls. The results show satisfactory psychometric performance of the ASI-6. The degree of the internal consistency of the standardized objective scores ranged between .47 and .95. As for test-retest reliability, the values were acceptable, varying from .36 to 1. The study of the internal structure revealed a good fit to a unidimensional solution for all scales taken independently. Regarding convergent-discriminant validity, the correlations between the primary and secondary scales of the ASI-6 and the Clinic Global Impression score were low, with values from .01 to .26. Likewise, 8 of the 15 scales differentiated between controls and unstable patients. The psychometric properties of the ASI-6 Spanish version seem to be acceptable, though it is necessary to carry out new studies to test metric quality with independent samples of patients.


Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM) - Universidad de Oviedo.

Journal Details

This article was published in the following journal.

Name: Psicothema
ISSN: 0214-9915
Pages: 513-519


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