This article describes how cognitive theory can be applied to the testing and teaching of intelligence. The article is divided into three main parts. The first part describes how the study of intelligence, traditionally an area that has been viewed as under the purview of differential psychology, has come squarely into the purview of cognitive psychology. The second part describes how the testing and teaching of intelligence, which in the past have been largely atheoretical, have been transformed into theoretically based enterprises guided by the theories of cognitive psychology. The last part describes a particular theory of intelligence, the triarchic theory, and how it has been applied to the problems of testing and teaching intelligence. It is concluded that cognitive psychology has given the study of intelligence a 'new lease on life', and that the testing and teaching of intelligence can and should be viewed as a primary focus of application for the principles of cognitive psychology.When one thinks of applied cognitive psychology, one typically thinks of manmachine interfaces, human-computer interaction, and perhaps, selective applications of cognitive psychology to education. One rarely thinks of the testing or teaching of intelligence. Yet in the latter part of the 1980s the testing and teaching of intelligence have become a major potential focus of applied cognitive psychology. The goal of this article is to describe how this state of affairs has come about, and what form it takes. But in order to understand the application of cognitive psychology to the testing and teaching of intelligence it is first necessary to understand how the study of intelligence became intertwined with that of cognition in the first place.
HOW THE STUDY OF INTELLIGENCE BECAME A BRANCH OF COGNITIVE PSYCHOLOGY
Testing of inteIligenceIn most domains of psychology theory has preceded application. For example, engineering psychology developed largely as the application of cognitive and behavioural principles to man-machine interfaces. The field of intelligence is highly unusual in that, for the most part, application preceded theory, and in many instances theory and application never closely connected. This sequence of events seems more to reflect the history of the field of intelligence, rather than any necessary properties of this field.