Marzeh Parvin - Department of Psychology¸Kermanshah Branch¸IsIamic Azad University¸Kermanshah¸Iran
Aliakbar Parvizifard - Department ofclinical psychology¸ medicine faculty¸ Kermanshah University of Medical Sciences(KUMS)¸Kermanshah¸Iran

Background and Aim : Objective: The aim of the present study was to determine the psychometric properties of the Iranian version of the stages of change readiness and treatment eagerness scale.Methods : This study was a descriptive design and conducted at government rehabilitation centers in Kermanshah, Iran. For this purpose, the validated instrument was administered to 388 drug addicts, who were outpatient services at government rehabilitation centers. The Data were analyzed by Cronbach’s alpha and Pearson correlation methods.Results : The results showed the both experts indicated that the items of the translated instrument had very high relevance to their present context. The inter-rater reliability of the scores given by the two expert indicated 0.88 between the experts’ scores for the total scale. The findings showed that the alpha coefficients for the total scale scores was 0.91.The Pearson correlation test indicated a high correlation coefficient of 0.88 between test and retest. The factor analysis showed that three correlated factors provided the best fit for the data.Conclusion : : In short, the studyshowed that the translated instrument has very high content validity and high reliability and that it can be used toassess motivation for behavior change and predict treatment outcomes in drug addicts that are receivingtreatments in Iran.

drug dependency, the stage of change theory, the stages of change readiness and treatment eagerness scale, Iran