Verbal Behavior: Extended Edition. Chapter 9: Multiple Causation. Quote 17 Post author:B. F. Skinner Foundation Post published: June 6, 2025 Post category:Skinner's Quote of the Day Two responses are thematically related when they are controlled by a common variable with respect to which they lack the point-to-point correspondence seen in echoic and textual behavior. (p. 243) You Might Also Like Cumulative Record. Chapter 23: Current Trends in Experimental Psychology. Quote 14 June 26, 2023 Verbal Behavior: Extended Edition. Chapter 5: The Tact. Quote 39 March 12, 2025 Skinner’s Birthday 2020 March 20, 2020