Validation of the Persian Version of Addiction-prone Personality Questionnaire

The identification of the individuals vulnerable to substance abuse disorders is one of the research priorities in this field. The aim of this study was to prepare the Persian version of Addiction-prone Personality Questionnaire for addicts. The present study falls within the category of applied research in terms of its purpose and is considered a validation study in terms of the type of the project. The research population consisted of male opium and methamphetamine addicts presenting to the addiction treatment centers of Izeh city in 2016. The number of these individuals amounted to 250 sample units who were selected via convenience sampling method. After removing incomplete questionnaires, this number reached 211 sample units. The collected data were analyzed using SPSS-22 and LISREL 80/8 software. The results of confirmatory factor analysis showed that the model is well fitted with the data. Factor loadings of most questions were satisfactory (with the exception of questions numbered 14 and 20) and the single-factor model was supported. In terms of the questionnaire convergent validity, the correlation between its total score and Psychopathic Deviate Scale was obtained equal to 0.55. The test-retest reliability coefficient of the scale was obtained equal to 0.88 within a two-week interval and its Cronbach's alpha coefficient was equal to 0.76, which indicated that the reliability is desirable. The Persian version of Addiction-prone Personality Questionnaire is an instrument with relatively favorable psychometric components in identifying the ones prone to substance abuse.