Rensis Likert was an American social psychologist best known for developing the Likert Scale, a popular method for measuring attitudes and opinions. Born in 1903, he contributed significantly to the fields of organizational psychology and management. His work emphasized the importance of understanding human behavior in the workplace. Likert also founded the Survey Research Center at the University of Michigan, where he conducted extensive research on leadership styles and organizational effectiveness. His findings highlighted the impact of participative management, influencing how organizations approach employee engagement and decision-making processes.