This book discusses the nature - nurture debate as it relates to human intelligence.

Robert Sternberg and Elena Grigorenko address the roles and interaction of nature and nurture in Intelligence, Heredity and Environment, which provides a comprehensive, balanced, current survey of theory and research on the origins and transmission of human intelligence. The book is unique in the diversity of viewpoints it presents, and its inclusion of the most recent theories and findings. It highlights the search for genes associated with specific cognitive abilities, interactionist theories, cultural relativism, educational strategies, developmental perspectives and fallacies of previous intelligence research. This book will be required reading for students and professionals in the fields of intelligence, behavior genetics, biology, anthropology, and sociology.

Research Paper (postgraduate) from the year 2017 in the subject Medicine - Human Genetics, grade: 1, Egerton University, language: English, abstract: In an attempt to determine the factors that influence intelligence in humans, psychologists have investigated the issue from two principal perspectives: nature and nurture. As a result, research studies on these aspects have confirmed that both nature and nurture influences the development of intelligence. According to Heffner, genetic factors have been identified as the influential forces of nature that shape intelligence, whereas environmental factors influence intelligence through exposure or rather nurture. In both schools of thought, it is apparent that tests for intelligence are aimed at determining the level of intelligence through the use of Intelligence Quotient (IQ) test. Similarities and differences in IQ among individuals explain the degree at which genetics and environment influences development of intelligence. Therefore, this research paper discusses nature-nurture basis of intelligence.

This book presents the results of a thirty-five-year research project involving 300 families, each of whom adopted at least one child at birth from a Texas home for unwed mothers during the period of 1962-1970. The book weaves together information about the birth parents of the adopted children; information about the adoptive parents; and information about the children in these families. Children adopted at birth have two sets of parents. Birth parents provide their adopted-away child with a genetic endowment, but do not participate in shaping the child's environment. Adoptive parents do not contribute genetically, but are otherwise in charge of directing the child's development. If adopted children grow up to resemble birth parents they have never seen, the clear inference is that hereditary factors have had an influence. Environmental factors are implicated whenever children resemble their adoptive parents, but not the birth parents. The Texas Adoption Project was designed to investigate the impact of genetic and environmental factors. This unique and innovative longitudinal study is written for specialists and the educated public. An introductory guide is provided for the non-specialist reader explaining the form and statistical content of the tables. Additional technical material for specialists is contained in appendices. This important contribution to the literature on adoption will also be of interest to those interested in the relative weight of genetics and environment in human development.