“…Numerous studies have reported links between substance abuse/dependence, stress, anxiety, depression, anger and other affective symptoms (e.g., Cappell & Grealey, 1987;Chassin, Pillow, Curran, Molina & Barrera, 1993). Drug addicts typically experience more anxiety, irritability, moodiness, anger and egocentricity than non-addicts (Francis, 1996), and individuals with high neuroticism scores tend to exhibit heavier alcohol use than people with low scores (Prescott, Neale, Corey & Kendler, 1997;Rankin, Stockwell & Hodgson, 1982;Sieber & Angst, 1990).…”