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Preface

Published online by Cambridge University Press:  15 October 2009

Robert Plomin
Affiliation:
Pennsylvania State University
John C. DeFries
Affiliation:
University of Colorado, Boulder
David W. Fulker
Affiliation:
University of Colorado, Boulder
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Summary

Behavioral genetic theory, methods, and research provide a unique perspective on nature and nurture during infancy and early childhood, that is, on the genetic and environmental origins of individual differences in behavioral development. The words “nature” and “nurture” each have warm associations until they are brought together. One of our goals is to emphasize the conjunction “and” rather than the projective test provided by the dash in “nature–nurture” or the explicit hostility in the phrase “nature versus nurture.” We believe that the perspective of behavioral genetics is as useful for understanding environmental influences in development as it is for exploring the role of heredity, and we hope that this book will convince developmentalists of the importance of both genetic and experiential factors in the origins of behavioral differences during infancy and early childhood. At the simplest level, the components-of-variance approach – which we explore in terms of simple correlations as well as by means of model-fitting analyses – often indicates that genetic variance is significant and invariably shows that nongenetic factors are important.

The decomposition of phenotypic variance into genetic and environmental components of variance is the standard fare of behavioral genetic research. Somewhat newer is an emphasis on the decomposition of the environmental component of variance into two components, one shared by family members, which increases their phenotypic resemblance, and the other not shared; correlations for genetically unrelated children reared together in the same adoptive homes are especially powerful for detecting the “bottom line” influence of growing up in the same family.

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Publisher: Cambridge University Press
Print publication year: 1988

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  • Preface
  • Robert Plomin, Pennsylvania State University, John C. DeFries, University of Colorado, Boulder, David W. Fulker, University of Colorado, Boulder
  • Book: Nature and Nurture during Infancy and Early Childhood
  • Online publication: 15 October 2009
  • Chapter DOI: https://doi.org/10.1017/CBO9780511527654.001
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  • Preface
  • Robert Plomin, Pennsylvania State University, John C. DeFries, University of Colorado, Boulder, David W. Fulker, University of Colorado, Boulder
  • Book: Nature and Nurture during Infancy and Early Childhood
  • Online publication: 15 October 2009
  • Chapter DOI: https://doi.org/10.1017/CBO9780511527654.001
Available formats
×

Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

  • Preface
  • Robert Plomin, Pennsylvania State University, John C. DeFries, University of Colorado, Boulder, David W. Fulker, University of Colorado, Boulder
  • Book: Nature and Nurture during Infancy and Early Childhood
  • Online publication: 15 October 2009
  • Chapter DOI: https://doi.org/10.1017/CBO9780511527654.001
Available formats
×