The design of changing criteria requires that target behavioral levels meet or exceed each criterion in turn to indicate a functional relationship, but in a relatively stable manner. Highly volatile data weaken the internal validity of your results.
The design of changing criteria (Cooper, Heron, Heward, 1987) is based on ``examining the contingency effects of reinforcement or punishment when applied to a single goal behavior in a graded or graded manner''. Suitable for systematically increasing the difficulty of a target.
Changing the design of the criteria will make comparisons impossible. It also includes prediction, validation, and replication. Experimental control is indicated by the extent to which response levels change with each new criterion.
An advantage of the change-criteria change design is that the behavior must already be included in the participant's repertoire. Running reversal phases on one or more planes of multiple baseline plans may weaken the demonstration of experimental control.
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