<P> The field of applied behavior analysis is considered by many to have derived from radical behaviorism . Actually the field derives from both radical behaviorism and the human based psychological behaviorism . Applied behavior analysis has been used in various settings including the treatment of disorders such as autism and substance abuse, as well as child raising, personality development, and abnormal behavior generally . In addition, psychological behaviorism has indicated how cognitive schools of psychological thought, while not behavioral, can be joined with a human oriented behaviorism . The field of cognitive behavior therapy, which has widely demonstrated utility in treating certain pathologies including simple phobias, PTSD, and mood disorders, has shown the productivity of that combination . </P> <P> There is no universally agreed - upon classification, but some titles given to the various branches of behaviorism include: </P> <Ul> <Li> Methodological behaviorism: Watson's behaviorism states that only public events (behaviors of an individual) can be objectively observed, and that therefore private events (thoughts and feelings) should be ignored . It also became the basis for the early approach behavior modification in the 1970s and early 1980s . </Li> <Li> Radical behaviorism: Skinner's behaviorism theorizes that processes within the organism should be acknowledged, particularly the presence of private events (such as thoughts and feelings), and suggests that environmental variables also control these internal events just as they control observable behaviors . Radical behaviorism forms the core philosophy behind behavior analysis . Willard Van Orman Quine used many of radical behaviorism's ideas in his study of knowledge and language . </Li> <Li> Teleological behaviorism: Post-Skinnerian, purposive, close to microeconomics . Focuses on objective observation as opposed to cognitive processes . </Li> <Li> Theoretical behaviorism: Post-Skinnerian, accepts observable internal states ("within the skin" once meant "unobservable", but with modern technology we are not so constrained); dynamic, but eclectic in choice of theoretical structures, emphasizes parsimony . </Li> <Li> Biological behaviorism: Post-Skinnerian, centered on perceptual and motor modules of behavior, theory of behavior systems . </Li> <Li> Psychological behaviorism: As proposed by Arthur W. Staats, unlike the previous behaviorisms of Skinner, Hull, and Tolman, was based upon a program of human research involving various types of human behavior . Psychological behaviorism introduces new principles of human learning . Humans learn not only by the animal learning principles but also by special human learning principles . Those principles involve human's uniquely huge learning ability . Humans learn repertoires that enable them to learn other things . Human learning is thus cumulative . No other animal demonstrates that ability, making the human species unique . To understand the nature of radical behaviorism and psychological behaviorism, go to the wikipedia section on Psychological Behaviorism . </Li> </Ul> <Li> Methodological behaviorism: Watson's behaviorism states that only public events (behaviors of an individual) can be objectively observed, and that therefore private events (thoughts and feelings) should be ignored . It also became the basis for the early approach behavior modification in the 1970s and early 1980s . </Li>

Who is most closely associated with behavioral psychology