• ICN

Randomized single-case AB phase designs: Prospects and pitfalls

Authors: Dr Bart Michiels and Dr Patrick Onghena


This paper discusses the randomized AB single-case phase design. Randomized AB single-case designs have been criticized in the past for their lack of internal validity and, as a result, have been labelled as ‘quasi-experimental’ or ‘non-experimental’. In this paper, Michiels & Onghena argue that the randomised AB single-case design should be recognized as a useful basic experimental design. The paper provides an overview of the typologies of single-case experimental designs. The authors outline some of the key challenges associated with randomised single-case AB phase designs and describe some solutions.


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Selected paper: Randomized single-case AB phase designs: Prospects and pitfalls (Michiels & Onghena, 2018)


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