The study of interactions between people: social influence and sport Psychology.
Home Advantage and Team Cohesion
Home ground advantage: why do home teams do better? Championship choke. Team cohesion and the factors that can improve this. Comparison of studies into cohesion. See Home Advantage and Team Cohesion.
Social facilitation is the increased likelihood that someone will perform better at a task because of the mere presence of others. Drive theory, evaluation apprehension and distraction conflict attempt to explain this. See Social Facilitation.
Obedience can be said to be at the most extreme end of influence, it is following an order. Famously investigated by Stanley Milgram we evaluate this research. Defiance is going against an order from an authority figure. See Obedience.
Minority Influence and Compliance
Minority influence involves a minority persuading the majority about an opinion. Whereas compliance involves somone getting you do agree to do something (usually a purchase). See Minority Influence and Compliance.
Majority influence is a type of social influence known as conformity. This is a change in belief or behaviour in light of a real or imagined pressure, without a direct request. There are two key types normative and informational. See Majority Influence.