“…The findings are also consistent with previous research showing that self-efficacy is associated with positive outcomes in psychotherapy for other types of physical health and psychiatric disorders, including breast cancer, osteoarthritis, nicotine addiction, substance misuse, bulimia nervosa, spider phobia and social anxiety disorder (Benyon et al 2010, Cote & Bouchard 2009, Goldin et al, 2012, Kadden & Litt 2011, Rottmann et al 2010, Schnoll et al 2011). According to Bandura and Cervone (1986), a person's sense of self-efficacy determines what challenges they undertake, how much effort they expend in attaining their goals, and how long they persevere in the face of difficulties.…”