Applied behavior analysis History Behaviorism
Psychologists who study the way the environment influences behavior are called behaviorists. Behaviorists believe that behavior is caused by things that happen in the environment. These things are called external events. External events could be any change in the environment. They study the external causes of behavior instead of a person's feelings. A person's feelings are internal so behaviorists think they cannot be studied scientifically. Feelings are internal because they happen inside of a person's body.