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Results

#1. A Board Certified Behavior Analyst (BCBA) is designing an intervention for a client. The BCBA is considering using a changing criterion design. Which of the following behaviors would be the LEAST appropriate to target using this specific experimental design?

Decreasing the amount of sugary foods consumed throughout the week.

Increasing the number of pages of a book read each night.

Teaching a client how to throw a ball for the first time.

Decreasing the number of mistakes made in a writing assignment.

The changing criterion design is specifically intended for behaviors that are already within the clients repertoire and can be gradually increased or decreased It is not designed for teaching new behaviors or skills For example decreasing sugary food intake increasing reading pages or reducing writing mistakes are all modifications of existing behaviors Teaching a new skill like learning how to throw a ball requires a different type of intervention and experimental design such as a multiple baseline across behaviors or a form of shaping as it involves the acquisition of a novel skill rather than the gradual adjustment of an existing one The core principle of the changing criterion design is to demonstrate experimental control by showing that behavior changes in response to successive changes in the performance criterion

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