Contingencies of Reinforcement. Chapter 4: The experimental analysis of behavior. Quote 17 Post author:B. F. Skinner Foundation Post published:April 23, 2018 Post category:Skinner's Quote of the Day “An operant must behave like one; it must undergo orderly changes in probability when independent variables are manipulated.” (p. 89) Subscribe to RSS feed here You Might Also Like Cumulative Record. Chapter 52: Can Psychology Be a Science of Mind? Quote 4 July 11, 2024 Contingencies of Reinforcement. Chapter 1: The Role of the Environment. Quote 20 February 6, 2018 Science and Human Behavior, Chapter 3: Why Organisms Behave, Quote 6 February 2, 2016