Cumulative Record: Definitive Edition (1999). Chapter 3: Some Issues Concerning the Control of Human Behavior. Quote 12 Post author:B. F. Skinner Foundation Post published:March 9, 2021 Post category:Skinner's Quote of the Day The observable effect of any statement of value is to alter the relative effectiveness of reinforcers. (p. 35) You Might Also Like Upon Further Reflection. Chapter 6: The Evolution of Verbal Behavior. Quote 15 June 19, 2020 Science and Human Behavior, Chapter 12: Punishment, Quote 8 July 18, 2016 Contingencies of Reinforcement. Chapter 8: Behaviorism at fifty. Quote 15 August 23, 2018