Verbal Behavior: Extended Edition. Chapter 8: The Verbal Operant as a Unit of Analysis. Quote 3 Post author:B. F. Skinner Foundation Post published: April 22, 2025 Post category:Skinner's Quote of the Day Classifications of responses are useful only in separating various types of controlling relations, and some responses may show features of both mand and tact. (p. 189) You Might Also Like About Behaviorism, Chapter 2: The World Within the Skin, Quote 8 February 27, 2017 Science and Human Behavior, Chapter 8: The Controlling Environment, Quote 8 May 25, 2016 About Behaviorism, Chapter 7: Thinking, Quote 2 May 12, 2017