“…The P and N factors are both made up of four components, and the T factor has three subcomponents. The original scale was studied in a sample of heavy drug users, which yielded a Cronbach's alpha coefficient of 0.88 for both P and N aspects of using drugs and 0.72 for the T section; in a separate sample of prison inmates, Cronbach's coefficients were 0.92, 0.90, and 0.81, respectively [2]. To date, Berman et al's original Swedish scale has been adapted to Bosnian, Danish, English, Finnish, French, German, Hungarian, Portuguese, Norwegian, Mandarin Chinese, Russian, and Turkish and was approved by European Monitoring Centre for Drugs and Drug Addiction [7].…”