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Chapter 20: Conceptualizing and Measuring Intelligence
The measurement of any psychological construct requires a precise and unambiguous definition of the construct (Messick, 1981; Slaney and Racine, 2013). Because there are many different definitions of intelligence, even precise and relatively unambiguous ones, there are also many different approaches to the measurement of intelligence. In this chapter, I will focus only upon intellectual intelligence, as distinct from emotional and social intelligence, for example.
Many putative definitions of intelligence actually consist of a delineation of dimensions of intelligence, rather than a genuine definition of intelligence. For example: the ability to recall items from memory, the ability to reason, and the capacity to process simple instructions quickly is not a ...