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Results

#1. A Board Certified Behavior Analyst (BCBA) is designing an intervention using a changing criterion design to gradually increase a client’s exercise duration. When determining the magnitude of change (i.e., the increase or decrease in the behavioral requirement) between successive criterion steps, which of the following statements is true regarding experimental control?

A smaller change indicates larger experimental control, but the change should not be too small.

A larger change indicates larger experimental control, but the change should not be too large.

A smaller change indicates larger experimental control, and the magnitude does not matter.

A larger change indicates larger experimental control, and the magnitude does not matter.

In a changing criterion design experimental control is demonstrated when the clients behavior reliably and consistently tracks the changes in the criterion If the behavior closely follows the criterion shifts it suggests that the criterion is functionally controlling the behavior A larger magnitude of change between successive criterion steps makes the functional relationship between the criterion and the behavior more evident and less ambiguous thereby indicating greater experimental control However the magnitude of change should not be so large that it becomes unrealistic or unachievable for the participant as this could lead to a failure to meet the criterion potentially obscuring the true effects of the intervention or leading to a loss of motivation

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