Consistent Methodological Errors Observed in Single-Case Studies: Suggested Guidelines

This article reviews current and consistent methodological problems that occur in research articles using single-case experimental designs. Problems discussed include (1) the use of pre- and quasi-experimental single-case designs, (2) the presentation and analysis of data, (3) the lack or inadequate demonstration of experimental reliability, and (4) the improper or ineffective use of generalization. The authors suggest ways of solving these problems and provide guidelines for avoiding their recurrence.

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