Abstract
We attempted a Hungarian adaptation of the European version (EuropASI) of the widely used Addiction Severity Index (ASI) within the frame of a multi-stage quality development programme. The ASI is characterised by good reliability and validity indicators. The empirical background for our research was the data obtained from ASI ratings for 266 alcohol- and drug-using patients presenting for treatment in addiction medicine clinics in different regions of the country. The reliability indicators for measurement tool rating (interrater) and time (test-retest) were high, with the exception of the correlation value for employment and support. The internal consistency of the test was good. The degree of correlation between the individual items did not exceed that found internationally. The psychometric results corresponded to the results obtained in foreign investigations. The Hungarian version of the ASI can be regarded as a useful and reliable measuring tool that can be used to identify the problems of addiction patients and to assess treatment efficacy.