Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

Nature, Nurture, and Cognitive Development from 1 to 16 Years: A Parent-Offspring Adoption Study

Robert Plomin, David W. Fulker, Robin Corley and John C. DeFries
Psychological Science
Vol. 8, No. 6 (Nov., 1997), pp. 442-447
Stable URL: http://www.jstor.org/stable/40063231
Page Count: 6
  • Read Online (Free)
  • Subscribe ($19.50)
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Nature, Nurture, and Cognitive Development from 1 to 16 Years: A Parent-Offspring Adoption Study
Preview not available

Abstract

Children increasingly resemble their parents in cognitive abilities from infancy through adolescence. Results obtained from a 20-year longitudinal adoption study of 245 adopted children and their biological and adoptive parents, as well as 245 matched nonadoptive (control) parents and offspring, show that this increasing resemblance is due to genetic factors. Adopted children resemble their adoptive parents slightly in early childhood but not at all in middle childhood or adolescence. In contrast, during childhood and adolescence, adopted children become more like their biological parents, and to the same degree as children and parents in control families. Although these results were strongest for general cognitive ability and verbal ability, similar results were found for other specific cognitive abilities--spatial ability, speed of processing, and recognition memory. These findings indicate that, within this population, genes that stably affect cognitive abilities in adulthood do not all come into play until adolescence and that environmental factors that contribute to cognitive development are not correlated with parents' cognitive ability.

Page Thumbnails

  • Thumbnail: Page 
442
    442
  • Thumbnail: Page 
443
    443
  • Thumbnail: Page 
444
    444
  • Thumbnail: Page 
445
    445
  • Thumbnail: Page 
446
    446
  • Thumbnail: Page 
447
    447