Single-Case Designs and Qualitative Methods: Applying a Mixed Methods Research Perspective.

The purpose of this conceptual paper is to describe a design that mixes single-case (sometimes referred to as single-subject) and qualitative methods, hereafter referred to as a single-case mixed methods design (SCD-MM). Minimal attention has been given to the topic of applying qualitative methods to SCD work in the literature. These two approaches potentially can be integrated using a mixed methods perspective to yield a powerful approach for understanding localized causality and describing intervention application. The SCD-MM also can be used within the context of action research if the purpose of such work is to investigate a causal question. [ABSTRACT FROM AUTHOR]