The primary purpose of management development programs is performance improvement at an individual and organizational level. Performance improvement results from knowledge, skill, or ability enhancement. An important intervention in management development is the use of 360-degree or multisource feedback (MSF), which leads to more effective career development activity resulting from enhanced self-awareness. The research model used to investigate self-reported postfeedback management development behavior is derived using the theory of planned behavior. The findings reveal that perceptions of the accuracy of MSF, cynicism, perceived organizational support, and age are significant predictors of postfeedback development behavior. The implications for research and practice are set out.