Many researchers, wishing to generalize to large numbers, have turned away from Piaget's measurement techniques to group paper-and-pencil tests. The psychometric properties of these tests and their statistical links with other constructs are examined, along with the relationship between the observed products of mental effort and their underlying…

Argues that Herrnstein and Murray's "The Bell Curve" (1994) merely restates the notion that intelligence can be reduced to a single ordinal measure, i.e., the primary factor for determining group or individual social-class status. Evidence from the biological sciences and quantitative genetics is presented that reveals that social…

This three-part report discusses the concept of intelligence and its importance for educators. Part 1 considers the basic question of what intelligence is. Part 2 discusses the implications of notions of intelligence for schooling, dealing with both the training of content knowledge and the training of intellectual skills. Each of these first two…