Applied Psychology
Applied psychology is the use of psychological methods and findings of scientific psychology to solve practical problems of human and animal behavior and experience. Mental health, organizational psychology, business management, education, health, product design, ergonomics, and law are just a few of the areas that have been influenced by the application of psychological principles and findings. Some of the areas of applied psychology include clinical psychology, counseling psychology, evolutionary psychology, industrial and organizational psychology, legal psychology, neuropsychology, occupational health psychology, human factors, forensic psychology, engineering psychology, school psychology, sports psychology, traffic psychology, community psychology, medical psychology. In addition, a number of specialized areas in the general field of psychology have applied branches (e.g., applied social psychology, applied cognitive psychology). However, the lines between sub-branch specializations and major applied psychology categories are often blurred. For example, a human factors psychologist might use a cognitive psychology theory. This could be described as human factor psychology or as applied cognitive psychology.
Psychology
Psychology is the science of behavior and mind, including conscious and unconscious phenomena, as well as feeling and thought. It is an academic discipline of immense scope and diverse interests that, when taken together, seek an understanding of the emergent properties of brains, and all the variety of epiphenomena they manifest. As a social science it aims to understand individuals and groups by establishing general principles and researching specific cases.
Psychology
For it still seemed to me “that it is not we who sin, but some other nature sinned in us.” And it gratified my pride to be beyond blame, and when I did anything wrong not to have to confess that I had done wrong. … I loved to excuse my soul and to accuse something else inside me (I knew not what) but which was not I. But, assuredly, it was I, and it was my impiety that had divided me against myself. That sin then was all the more incurable because I did not deem myself a sinner.
Augustine, Confessions, A. Outler, trans. (Dover: 2002), p. 77
Psychology
Truly, if you want to ascertain what love there is in you or in another person, then pay attention to how he relates himself to one who is dead. If one wishes to observe a person, it is very important for the sake of the observation that one, in seeing him in a relationship, look at him alone. When one actual person relates himself to another actual person, the result is two, the relationship is constituted, and the observation of the one person alone is made difficult. In other words, the second person covers over something of the first person; moreover, the second person can have so much influence that the first one appears different from what he is. Therefore a double accounting is necessary here; the observation must keep a special account of the influence the second person has on the person who is the object under observation through his personality, his characteristics, his virtues, and his defects. If you could manage to see someone shadowboxing in dead earnest, or if you could prevail upon a dancer to dance solo the dance he customarily dances with another, you would be able to observe his motions best, better than if he were boxing with another actual person or is he were dancing with another actual person. And if, in conversation with someone, you understand the art of making yourself no one, you get to know best what resides in this person.
Soren Kierkegaard 1847 Works of Love, Hong 1995 p. 347
Applied Psychology
War has given applied psychology a tremendous impulse. This will, on the whole, do good, for psychology, which is the largest and last of the sciences, must not try to be too pure.
G. Stanley Hall (1919); Cited in O'Donnell, John M. "The crisis of experimentalism in the 1920s: EG Boring and his uses of history." American Psychologist 34.4 (1979). p. 290