Scientific study and measurement of behaviour is called:

The scientific study and measurement of behavior is called psychology. It is defined as the systematic study of the mind, brain functions, and both conscious and unconscious behaviour in humans and non-humans. - (A) Psychiatry: The field of medicine emphasized diagnosis and treatment of mental illness. - (B) Psychology: The scientific study of human behavior and mental processes. - (C) Physiology: The branch of biology that studies how living things and their parts function. - (D) Psychoanalysis: Therapy approach that involves exploring the unconscious ideas, emotions, and experiences to treat mental disorders, developed by Sigmund Freud.