A Note on the "One Case per Stagger Position" Character of Common Multiple-Baseline Intervention Designs.
To overcome the constraint of common multiple-baseline designs that only one case per stagger position is permitted. Three alternative strategies for assigning more than one case to each stagger position are examined. The three recommended strategies achieve the objective while maintaining the study's internal and statistical-conclusion validities. ExPRT, a freely available Excel-based randomization-test package, can be used to assist in both the design and statistical analysis associated with each of the strategies.