Rubin and Knox argue that single-case designs are currently overemphasized in social work
education and are of more limited value in practice than is commonly stated. These conclusions
are based on confusions between research and practice, misunderstandings and misstatements
of the relative utility of single-case and group designs for both, and neglect of the basic literature
regarding single-case designs and visual analysis. In addition, the Rubin and Knox arguments
appear to be based on overinterpretation of the results of a study of an ineffective intervention.
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