Changing Criterion design is used in applied research for evaluating instructional and therapy programs in changing behavior gradually or stepwise (Gast & Ledford, 2014). It is used for increasing or decreasing behaviors that are already in subject’s repertoire (Gast & Ledford, 2014). It requires initial baseline observation on a single target behavior followed by treatment or instructional program implementation in phases, i.e. in series of steps. A stepwise change in criterion rate for the target behavior is connected to each treatment phase, so that each phase of the treatment represents a baseline for the subsequent treatment phase (Gast & Ledford, 2014). Experimental control is demonstrated when the rate of target behavior changes according to each stepwise change in criterion. Therapeutic...
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