Verbal Behavior: Extended Edition. Chapter 8: The Verbal Operant as a Unit of Analysis. Quote 9 Post author:B. F. Skinner Foundation Post published:April 30, 2025 Post category:Skinner's Quote of the Day Differential reinforcement shapes up all verbal forms, and when a prior stimulus enters into the contingency, reinforcement is responsible for its resulting control. (pp. 203-204) You Might Also Like Cumulative Record. Chapter 7: Are Theories of Learning Necessary. Quote 16 March 18, 2022 Cumulative Record. Chapter 10: The Experimental Analysis of Behavior. Quote 16 June 23, 2022 Science and Human Behavior, Chapter 11: Aversion, avoidance, anxiety, Quote 9 July 5, 2016