NCT SCHOOL OF PSYCHOLOGY BEHAVIOURISM AND HUMANISM In this paper, it is tried to explain the first force (Behaviourism) and the third force (Humanistic Psychology) and, compare differences and similarities between them. Each school of thought in psychology was sometimes born as a reaction to the previous ones or a new version of them. Although behaviourism is very popular, reactions to it and alternative thoughts are also strong in modern psychology. The debate between structuralism and functionalism was only the prelude to other fundamental ....