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Published online by Cambridge University Press: 06 October 2014
The alternating treatments design which is increasingly being used in single subject research is described. This design allows the differential effectiveness of two or more treatments to be investigated by presenting each of them separately in closely spaced sessions, with the order of presentation alternated. Consideration is given to the types of behavior and contexts that are most appropriate for use with this design and also to factors important for ensuring its effectiveness and the valid interpretation of the resulting data.