The nature of groups: What is a Group? Some Examples . What is a Group? A Definition. What is a Group? Properties and Processes. Groups Are Dynamic. The Nature of Group Dynamics. The Discovery of Groups. Are Groups Real? Contemporary Group Dynamics. Interdisciplinary Outlook. Applications and Topics. Group Dynamics is Dynamic. Measurement in group dynamics: Observational Techniques. Self-Report Measures. Research Designs in Group Dynamics. Research Designs in Group Dynamics. Case Studies. Experimentation. Correlational Designs. Selecting a Research Design. Theories in Group Dynamics. Motivational Models. Behavioral Approaches. Systems Theories. Cognitive Approaches. Biological Models. Selecting a Theory. From isolation to belonging: The Replacement Hypothesis. The Belongingness Hypothesis. Groups and Society. The Value of Groups. From Individuality to Collectivity. Groups and Identity. Which Self? The Two Sides to Identity. Social Identity and Self-Worth. Turning Against the Group: Seeking Individuality. Who joins groups? Introversion and Extraversion. Social Motivation. Social Anxiety, Shyness, and Groups. Men, Women, and Groups. When Do Groups Form? Social Comparison. Stress and Social Support. Groups and Collective Endeavors. Proximity and Social Integration. Interpersonal Attraction. The Economics of Membership. When Do Members Leave? Group Socialization. Stages of Socialization. Costs, Commitments, and Membership. Norms: The Development of Norms. The Transmission of Norms. Roles. Role Differentiation. Task and Socioemotional Roles. Why Differentiation? Role Stress. Intermember Relations. Status Hierarchies. Social Standing. Communication Networks. The nature of cohesion in groups: What is Group Cohesion? Measuring Group Cohesion. Developing Group Cohesion. Stages of Group Development. Cycles of Group Development. Cohesion's Consequences. Members' Satisfaction and Adjustment. Group Dynamics and Influence. Group Performance. Application: Work Teams. What is a Work Team? Team Building. Are Teams Effective. Majority influence: the power of the many: Asch and Majority Influence. Limits to Majority Influence. Minority Influence: The Power of the Few. Moscovici and Minority Influence. Influence as Social Impact. Sources of Group Influence. Informational Influence. Normative Influence. Interpersonal Influence. Application: Understanding Juries. Jury Dynamics. How Effective are Juries? Improving Juries. Obedience to authority: The Milgram Experiments. Milgram's Findings. The Riddle of Obedience. Sources of Power. Power Bases. Power Tactics. The Dynamics of Authority. The Roots of Obedience. The Metamorphic Effects of Power. Compliance and Conversion. Resistance to Influence. Changes in the Powerholder. question Authority. The roots of conflict: Disaffection and Disagreement. Substantive Conflicts. Procedural Conflicts. Competition and Conflict. Social Dilemmas. Confrontation and Escalation.