Introductory Concepts
Elementary Relationships
Extensions of Verbal Behavior
Multiple Controlling Relationships
Building on the Elementary Relationships

24.2 Generic Extension Example #1

Generic extension results in classifying things into groups or categories. For example, if a child has been taught to say “dog” in the presence of the family poodle and also in the presence of his or her uncle’s collie, any tendency to say “dog” in the presence of a new dog (e.g., a chihuahua) would be generic extension of the tact relationship.

A boy is communicating with a pink poodle using a speech bubble.


A boy is communicating with a dog using a speech bubble in a 24.2 Generic Extension Example #1.


A boy and a dog in a cartoon with a speech bubble.

generic tact extension

Generic Extension

An instance of verbal behavior with the following features:

The response form must be a previously learned one

The stimulus must be novel

The novel stimulus must have all of the relevant features of the stimulus that previously controlled the response

The type of elementary verbal relationship between the stimulus and the response

Formal and dynamic characteristics of the response

Formal or dynamic characteristics of the stimulus

Whether or not the current response is followed by reinforcement

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