The relative impact of various nursing care delivery models and management interventions on nurse satisfaction was assessed in 37 New Jersey hospitals. Nurses ranked pay as the most important factor, followed by autonomy and professional status. Changes in scores between pilot and comparison units were significantly different for satisfaction with interactions and task requirements. Change in satisfaction with interaction was significant for all initiatives in aggregate, as well as for each of the five types of initiatives separately. The change in satisfaction with task requirements was significant for all initiatives taken as a group and for those units that implemented reorganization, computer, and education initiatives. Even among nurses who eventually liked the new environment there was a period of initial dissatisfaction.