How psychology is applied to other disciplines and venues in contemporary society

The Discipline of Psychology There are three important concepts to remember when defining psychology: science, behavior and mental processes. When defining psychology for a friend I would first simply just give him/her the standard book definition, which is the scientific study of behavior and mental processes. But, psychology can be defined in many different ways. Another definition of psychology could be the scientific study of the human mind and its functions such as those affecting behavior