Published in the International Journal of Nursing Studies, the following study evaluated the effects of an educational “toolbox” intervention on nursing staff ratings of their competence, psychosocial work environment and overall work satisfaction. Nursing staff ratings of their competence and psychosocial work environment, including overall work satisfaction, improved significantly over time in the intervention municipality, compared to the reference group. Both competence and work environment ratings were largely unchanged among reference municipality staff. Nursing staff ratings of participation, leadership, performance feedback, and skills’ development for these four scales improved significantly in the intervention municipality as compared to the reference municipality. Nursing staff ratings of their competence and the psychosocial work environment improved in the municipality where the toolbox was introduced.