This document introduces the topic of organizational behavior and defines some key terms. It discusses that OB draws from several disciplines like psychology, social psychology, sociology, anthropology, and economics. OB uses the scientific method to form and test hypotheses about how things are usually done in organizations and how they could be done best. It examines outcomes like productivity, absenteeism, and turnover, and looks at individual, group, and organizational factors that influence these outcomes. Contingency theory holds that the best approach depends on situational factors. Understanding OB can help you understand how people respond to situations and get others to do what you want. Key trends affecting organizations today include technology changing work structures, increasing internationalization, and more diverse workforces