ABSTRACT
Executive function is not a unitary cognitive process, but instead is a psychological construct that is composed of multiple interrelated high-level cognitive skills. A plethora of definitions for this construct have been proposed, and while these definitions are general and broad due to the construct’s multiplicity, common themes are clearly present. There is also some agreement with regards to the skill set that falls under the umbrella of executive function. Various theoretical models of executive function have been developed, and these models have influenced research and clinical practices. Operational, or clinically relevant, frameworks for this construct are important as they provide the basis for assessment tools, interpreting test performance and everyday behavior, and understanding executive function development. The aim of this chapter is to review relevant conceptual models and frameworks of executive function in order to provide a more thorough understanding of the conceptual and clinical issues associated with this psychological construct.
