Reflections on Behaviorism and Society. Chapter 14: The Force of Coincidence. Quote 1 Post author:B. F. Skinner Foundation Post published:December 30, 2019 Post category:Skinner's Quote of the Day “Coincidence is the heart of operant conditioning. A response is strengthened by certain kinds of consequences, but not necessarily because they are actually produced by it.” (p. 172) You Might Also Like Science and Human Behavior, Chapter 7: Operant Discrimination, Quote 18 May 6, 2016 Cumulative Record: Definitive Edition (1999). Chapter 5: “Man”. Quote 5 April 9, 2021 Verbal Behavior: Extended Edition. Chapter 5: The Tact. Quote 16 February 7, 2025