Common sense psychology[edit]
From the book The Psychology of Interpersonal Relations(1958), Fritz Heider tried to explore the nature of interpersonal relationship, and espoused the concept of what he called "common sense" or "naïve psychology". In his theory, he believed that people observe, analyze, and explain behaviors with explanations. Although people have different kinds of explanations for the events of human behaviors, Heider found it is very useful to group explanation into two categories; Internal (personal) and external (situational) attributions.[6] When an internal attribution is made, the cause of the given behavior is assigned to the individual's characteristics such as ability, personality, mood, efforts, attitudes, or disposition. When an external attribution is made, the cause of the given behavior is assigned to the situation in which the behavior was seen such as the task, other people, or luck (that the individual producing the behavior did so because of the surrounding environment or the social situation). These two types lead to very different perceptions of the individual engaging in a behavior