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People often react and behave differently when they are put into different social situations. The aim of social psychology is to understand the nature and causes of individual behaviors. It questions or provides an insight of how human behavior relies on the physical environment. Social psychology theories attempt to explain why there are competition between individuals, why it is often the case that individuals or organisations seek to protect and maintain their status, and why it has been observed that individuals and organisations are willing to sacrifice efficiency to achieve their goal of staying at a higher hierarchical position. In addition to status, social psychology also includes people's behavior towards goal setting, feedback and controls, interdependence, and reciprocity.