The Least Preferred Co-worker (LPC) scale is a psychological tool developed by Fred Fiedler to assess an individual's leadership style. It asks respondents to describe the person they least enjoy working with, focusing on their feelings about that co-worker. The responses help determine whether a leader is task-oriented or relationship-oriented based on the scores given. A higher LPC score indicates a more relationship-oriented leader, who values interpersonal connections, while a lower score suggests a task-oriented leader, who prioritizes goals and productivity. This scale is used in organizational psychology to understand leadership dynamics and improve team effectiveness.