Chief Master Sergeant (last name) A chief master sergeant in the U.S. Air Force is the highest senior non-commissioned officer rank and directly above senior master sergeant. It is equivalent to the rank of sergeant major in the Army, master gunnery sergeant/sergeant major in the Marines, and master chief petty officer in the Navy/Coast Guard.
Pivotal Response Treatment (PRT) is a naturalistic intervention based on the principles and practices of applied behavior analysis (ABA) and developmental approaches.
What is the History of PRT? Pivotal response treatment was developed in the 1970s by educational psychologists Robert Koegel, Ph.D., and Lynn Kern Koegel, Ph.D., at the University of California, Santa Barbara. The Koegels are now director and clinical director, respectively, of the UCSB Koegel Autism Research Center.