Elizabeth engages in skin scratching that never occurs when others are present. Additionally, no one has commented on this behavior, and it has occurred undetected by others for quite a long while. Elizabeth hides the scratch marks under clothing. The scratching behavior is MOST likely to be maintained by:
Why should extinction be used in combination with reinforcement-based procedures?
Each response in a chain produces a stimulus change that serves as both a discriminative stimulus anD.
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