Answer:
Psycho-dynamic, behaviorism, cognition and humanistic.
Step-by-step explanation:
Psycho-dynamic: It is the very oldest and the first school of psychology. It was developed by Sigmund Freud. He talks about personality development, dream analysis, defense mechanism, and psychoanalytic approach, etc.
Behaviorism: It is the second leading school of psychology. It was proposed by J.B Watson. He was a behaviorist. He worked on the behavior of humans and animals.
Cognition: Cognitive psychology is the famous field of psychology in which thought and cognition have been described by many psychologists.
Humanistic: It is another field of psychology. In this field Carl Roger, Mash-low was the humanistic psychologist. These psychologists work on the basic need of a person.