This paper reviews what is known about intelligence and the use of intelligence tests. Environmental and hereditary factors that affect performance on intelligence tests are reviewed, along with various theories that have been proposed about the basis of intelligence. Intelligence tests do not test intelligence per se but make inferences about a…

This book explores the development of creoles and other new languages, highlighting conceptual and methodological issues for genetic linguistics and discussing the significance of ecologies that influence language evolution. It presents examples of changes in the structure, function, and vitality of languages, suggesting that similar ecologies…

The experiences and responses of high school biology students using the GenScope computer program are described. GenScope represents genetic concepts in a linked multilevel fashion to teach students to think like scientists. Many GenScope problems use a fictitious dragon species to illustrate genetics. Students can manipulate the dragons' genes to…

Investigated to determine specific intelligence, personality characteristics, and behavioral patterns of boys with the XYY syndrome (a rare pattern of sex chromosome imbalance) were the childhood and adolescence of 20 males, 6- to 58-years of age at time of diagnosis. (Author/MC)

In this paper, the relation between heritability and sources of group differences is analyzed in terms meaningful to the nonmathematician. (Author)

Theory of evolution is not fact but is a scientific theory based on numerous pieces of concrete evidence. The only way to disprove this theory is to show evidence against it. The creationist view cannot be accepted in the light of new knowledge in molecular biology and other fields. (PS)

Although both genetic and situational factors are implicated in criminality, the thesis here is that the latter may well be more important and more frequently encountered than many criminologists have acknowledged to date. (JB)

A constitutional genetic neurochemical dysfunction is posited as the basis of a large number of learning disabilities. (Author/GW)

Rebuttal to Gage's view that the elimination of racial differences depends on education, not on eugenics. (MF)

Discusses the heritability of intelligence. (MF)

Analysis of the research reported by R. J. Light and P. V. Smith in Harvard Educational Review, Social Allocation Models of Intelligence," v.30, 1969, p.484-510. (VW)