Psychometric properties of the Persian versions of the Positive Alcohol Metacognitions Scale (Persian-PAMS) and the Negative Alcohol Metacognitions Scale (Persian-NAMS) in alcohol-dependent individuals

Abstract

Positive and negative metacognitions regarding alcohol effects are related to drinking problems. This study aimed to validate the Persian versions of the Positive Alcohol Metacognitions Scale (Persian-PAMS) and the Negative Alcohol Metacognitions Scale (Persian-NAMS) and to assess the relations of metacognitions about alcohol use to alcohol craving and dependence in a clinical sample of males with a DSM diagnosis of alcohol dependence. Three hundred treatment-seeking males with alcohol dependence completed the Alcohol Use Disorders Identification Test (AUDIT), the Alcohol Outcome Expectancy Questionnaire (AOEQ), the Obsessive Compulsive Drinking Scale (OCDS), the Depression Anxiety Stress Scales (DASS-21), and the Persian-translated versions of the PAMS and NAMS. The results showed that similar to original versions of the PAMS and NAMS, the Persian version of the scales had a two-factor structure. Test-retest coefficients over a four-week interval and internal consistency showed good reliability for the Persian-PAMS and Persian-NAMS and their subscales. Predictive validity showed that positive metacognitions about alcohol use were associated with alcohol craving and dependence independent of outcome expectancies about alcohol use. The findings suggest that the Persian-PAMS and Persian-NAMS have appropriate psychometric properties in Iranian males with alcohol dependence. Results also highlight that positive metacognitions may be more related to alcohol craving and dependence relative to outcome expectancies about alcohol use.