Single-case design emphasis in American Psychological Association-accredited school psychology programs.

Single-case design (SCD) is an underutilized research methodology in school psychology literature. Despite its relevance to practitioners and applied intervention researchers alike, the majority of intervention research disseminated in school psychology journals tends to involve group designs, such as the randomized controlled trial. Group designs are useful for answering a wide variety of research questions but may not always be relevant to practitioners seeking procedures that work for their students or researchers seeking for the optimal design to answer their research questions.