This document discusses various theories and models related to individual and group behavior in management. It begins by explaining factors that influence individual behavior such as personality, attitudes, learning, and perception. It then discusses the MARS model of individual behavior which considers motivation, abilities, role perceptions, and situational factors. Later, it covers cognitive dissonance theory and the Myers-Briggs Type Indicator and Big Five models for assessing personality traits. The document also examines foundations of group behavior including types of groups, stages of group development, and properties such as roles, norms, status, size, and cohesiveness. It concludes by summarizing several theories of motivation including Maslow's hierarchy of needs, ERG theory, and Her