Burnout not only affects psychiatric nurses' ability to provide optimal patient care, but its consequences extend to the nurse's psychological and physical health. Couched in a cognitive-transactional model, the broad aim of the current study was to measure burnout levels for psychiatric nurses and to determine the respective roles of the environment and the individual on burnout levels. Burnout levels were measured using Maslach and Jackson's (1986) Burnout Inventory. Environmental variables measured included work load, collegial support. role conflict and role ambiguity. Finally, Antonovsky's (1987) sense of coherence (SOC) measured the characteristics of the individual. Although burnout levels were generally high, a low sense of personal accomplishment was particularly problematic. Emotional exhaustion and depersonalisation correlated significantly with all factors of the work environment and with the SOC. Personal accomplishment related only to role conflict. Multiple regression analyses showed the sense of coherence and work load to explain a large proportion of both emotional exhaustion and depersonalisation, and role conflict to explain a small but significant amount of the variance in personal accomplishment. Moderated multiple regression analyses added to a growing body of research pointing towards a possible direct effect of the SOC on burnout.