Evaluation of a long-term transformational leadership development program

This study represents a multi-method, multi-source, and longitudinal evaluation of a leadership development program in Germany. For the development of transformational leadership, the methods of leadership feedback, training, and coaching were combined into a program. The effects of this program were evaluated at three, six, nine, and twelve months after training. Altogether, 25 leaders participated in the program. The results revealed that transformational leadership (subordinate assessment) improved six months after training and later on. Also, leaders' performance (leaders' supervisor ratings) and Organizational Citizenship Behavior (subordinate assessment) improved over time.