This document discusses personality and its influence on organizational behavior. It defines personality as relatively stable characteristics exhibited across situations. The main factors shaping personality are heredity and environment. Conscientiousness predicts job performance and organizational citizenship. Extroversion predicts performance for social jobs. Type A personalities are impatient and success-oriented, while Type B's are patient and relaxed. Attribution theory examines how people explain behaviors - internally (effort, ability) or externally (luck). Self-serving bias attributes success internally and failure externally. The fundamental attribution error overattributes internal factors to others. Personality must fit organizational roles to be effective.