1) The document discusses principles for developing, strengthening, maintaining, and modifying behaviors using reinforcement and other techniques.
2) It outlines principles such as successive approximation, continuous reinforcement, negative reinforcement, and modeling to develop new behaviors. Principles like decreasing reinforcement and variable reinforcement can strengthen behaviors.
3) To maintain behaviors, the document discusses substitution principles. It also presents satiation, extinction, incompatible alternatives, and punishment principles for stopping inappropriate behaviors. Fear reduction and avoidance principles are proposed for modifying emotional behaviors.