The biometrical school of scientists who fit models to IQ data traces their intellectual ancestry to R. Fisher (1918), but their genetic models have no predictive value. Fisher himself was critical of the concept of heritability, because assortative mating, such as for IQ, introduces complexities into the study of a genetic trait. (SLD)

Written by a biologist, this paper is intended to present information on the sociological study of man from a biological perspective. Perspectives include that (1) sociology neglects biological variables that are part of understanding human behavior and human societies; (2) the sociobiological or evolutionary view of human development is…

A study of twins was conducted to determine the presence of an hereditary component in short term memory and in three aspects of verbal divergent thinking--flexibility, fluency, and originality. Results showed the existence of a significant genetic component in the trait of short term memory, while none was found in verbal divergent thinking. (AG)

Examines perspectives on family influences on child development. Maintains that genetic and biological factors and parental actions/attitudes make important contributions to individual differences. Draws on research on gender differences and conduct disorders to illustrate that parental influence on individual differences within cultures has been…