Behaviorism
Behaviorism', or 'behaviourism', is an approach to psychology. Behaviorists say that scientific study of behavior should consist only of what can be directly seen. A person's behavior or an animal's behavior in specific situations can be seen. The mind or thoughts of people and animals cannot be seen. Behaviorists focus on relationships between stimuli and responses. Unseen qualities such as states of mind were not part of the study. Even though we know today that the mind plays a part in all advanced animals' behaviors. The mentality of apes'. They believe that in  man, the mind was not allowed to play any part in behaviorist psychology This was decided because the mind could not be directly observed.