ABSTRACT
Intelligence Test's are designed to assess individual differences in cognitive development. They can rightly be classified as mental tests, because the operations they involve have to be specified in sufficient detail, and conducted in a standardized way. The revision took much greater account of Binet's view that, although intelligence was complex, it involved what he called a central organ some component or combination of qualities which was of crucial importance. The kind of research described has led to the development of a multiplicity of intelligence tests. If such formulations imply that intelligence is an entity, rather than the name of an examination mark, this does no more than recognize that it is an entity that is postulated. Human Intelligence, Perspectives and Prospects, by R. Kail and J. W. Pellegrino can also be strongly recommended, in spite of some lacunae in the coverage of European research it is particularly good when dealing with process-models for intellectual activities.
