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

35.6 Fragmentary Sources of Strength Non-Example

If the multiply determined response is completely affected by a formal source, then the strengthening is NOT fragmentary. If you say “no smoking” both because it would be currently reinforcing to you if someone nearby stopped smoking and also because you faintly heard someone say “no smoking,” the echoic source would not be considered fragmentary.

Fragmentary Source of Strength

A type of stimulus control with the following features:

The response form is multiply controlled

At least one of the controlling variables strengthens only one part of the response form

Which types of elementary verbal relationships are involved

The response topography

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