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

17.9 Tact Example #2

Correctness is a final issue. Saying “cat” in the presence of a dog is a tact. We call it incorrect and typically do not continue to reinforce this response, but it is nevertheless a tact. Incorrect tacts often represent a type of extension of verbal behavior which is discussed later in this tutorial.


A form of verbal behavior with the following features:

A verbal response

The controlling variable is a non-verbal stimulus, which is an object or event or a property of an object or event

The musculature with which the response is executed (vocal, written, gestural, etc.)

The modality of the stimulus (auditory, visual, gustatory, olfactory, etc.)

Whether or not there is any reinforcement for the current response

The “correctness” of the response

A boy is interacting with a pink poodle in a visual communication example.
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