Lecture notes from the course in 2015/2016. This course on social psychology provides a more in-depth look at topics that have been introduced in Introduction to Psychology and Psychology, History, and Application. Social psychology seeks to understand the motivation behind people's behaviours in a social context. It aims to uncover the interactions between people in a given society and how and to what extent the environment (including other people) influences the actions of an individual. An official definition is thus: the study of people's thoughts, feelings, and behaviours are influenced by the real or imagined presence of other people.One example is the Bystander Effect, where in traumatic situations, many witnesses and bystanders do nothing to help the victim, while simultaneously holding the belief that they would. This occurs due to complex networks of relationships between the bystanders, resulting in a general non-response. In fact, the larger the number of bystanders, the less likely anybody is going to help. This is applicable in a number of situations.The main reason for this effect is diffusion of responsibility - that is, the more people there are, the more helping the victim becomes a shared responsibility, and the...