Please respond to the following:

• Define applied behavior analysis.
• Describe the key characteristics of ABA. Be sure to include reference to the "seven dimensions" as well as other key characteristics of applied behavior analysis.
• Discuss each of the domains of ABA: radical behaviorism, experimental analysis of behavior, applied behavior analysis, and professional practice. How are these interrelated and differentiated in the practice of applied behavior analysis?
• Taking these domains into account, describe the role of a behavior analyst as a scientist practitioner.