This paper summarizes empirical findings of research on a theory of general mental ability, based on laboratory studies of the relationship between measurements of individual differences on conventional psychometric tests and in speed and efficiency of information processes. The paper covers characteristics of "g" (general mental ability),…

It is concluded that equality of endowment is a myth dreamed up for ideological and political reasons. Educational policies must not be dictated by such fictions which fail to take into account biological reality. More quantitative studies are required to make equality of opportunity a concrete and realistic ideal. (EH)

Areas of agreement and disagreement concerning intellectual developmental and the problems of mental retardation espoused by the author and by Uzgiris are discussed in this paper. The importance of environmental factors, along with the genetic and/or constitutional nature of the organism on which these environmental events impinge, is seen as…

We need to find out the extent to which individual differences, social class differences and race differences in rates of cognitive development, and differential patterns of relative strength and weakness are attributable to genetically conditioned biological growth factors. The answers to this question might imply differences in our approach to…