As clinical aphasiologists seek different ways to understand the complexity of aphasia within naturalistic and social contexts, there is an increasing need to provide background information on various research paradigms not widely used in the field. Consistent with recent calls for qualitative research in clinical aphasiology, this article provides information on the rationale, design characteristics, strengths and weaknesses of this research paradigm and its usefulness in clinical aphasiology.
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Damico et al. (1999) studied this question.