most commonly employed. I see no virtue in accident or in the chaos from which somehow we have reached our present position. I believe that man must now plan his own future and that he must take every advantage of a science of behavior in solving the problems which will necessarily arise (Skinner [1980] 411).
Skinner's behaviorism builds on the behaviorist principles of earlier researchers, as he acknowledges. The intent is to explain human behavior, and the behaviorist approach seeks a scientific cause-and-effect answer to the question of what causes human behavior. Skinner notes that there is a universe within each of us that interacts with the external universe. Our internal world keeps in touch with the external world by responding to three nervous systems, two of which are concerned more with internal features. The interoceptive system carries stimulation from organs, glands, and blood vessels, and this is primarily important fo
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