Employment specialists received training in basic methods of CBT, focusing on maladaptive patterns of thinking contributing to, or arising from work related difficulties. Training lasted 40 h. The CBT intervention was based on principles of simple behavioral activation concepts such as activity schedule and gradual task assignments as well as addressing of maladaptive schema underlying beliefs with regard to the occupational setting (Co-workers, supervisors etc.). CBT was carried out by employment specialists in individual sessions with participants twice a week. That is, employment specialists in the CBT intervention worked with participants in the attempt to alter cognitive biases related to work by addressing content of thought and style of thinking in terms of recognizing, changing and coping with underlying thinking patterns possibly limiting occupational success. Social relationships were addressed through focus on work environment and close cooperation with the immediate supervisor