The most recent research into decision-making suggests that the most effective leaders are the ones who are able to adapt their decision-making style over time as their roles and responsibilities change. Discover a proven, easily understandable way to assess decision-making style with the Decision–Making Style Inventory.The Inventory offers a proven, easily understandable way to assess decision-making style. The Inventory measures two dimensions of decision-making: Two structural stylesSystematic and Spontaneous, and two processing stylesInternal and External. The 20-item Inventory determines which of four styles is an individuals preferred style. It is a powerful tool that can be used in numerous developmental situations such as formal leadership training, coaching, and even performance appraisals.Use the Decision-Making Inventory Participants Workbook in conjunction with the Inventory to determine your decision-making style.

William C. Coscarelli teaches fulltime at Southern Illinois University Carbondale in the department of Curriculum & Instruction. He is the former co-director of the Hewlett-Packard World Wide Test Development Center. He was elected as president of the Association for Educational Communications and Technology Division for Instructional Development, appointed as founding editor of Performance Improvement Quarterly, and was elected as the president of the ISPI (International Society for Performance Improvement).