Abstract
In recent years, single-subject research, in which the investigator is interested in analyzing the effects of independent variables on particular individuals, has developed as an alternative to group designs. Many of these designs have been developed by researchers working with special populations in which preservation of individual progress is imperative. In this paper, five designs are discussed: the ABAB, multiple baseline, multiple probe, changing criterion, and multi-element. Examples are provided for each and suggestions are made for their use.
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