This article analyzes the concept of expertise. Expertise can have varied definitions, and different theories can be used to explain how individuals become experts. Chunking theory, network theory, and schema theory are described as they relate to the development of expertise. Intuition and expertise are two concepts that are closely related, and this association is clear as characteristics of expertise are described. This article concludes with a presentation of clinical exemplars that serve as model cases to illustrate dimensions of expertise.
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