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  • adoptees  (2)
  • family environment  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Social class in adopted and nonadopted siblings (1984)
    Springer
    Behavior genetics 14 (1984), S. 587-593 
    Details
    ISSN: 1573-3297
    Keywords: social class ; adoptees ; siblings
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Psychology
    Notes: Abstract The social class of adult adoptees is found to correlate with that of their nonadopted biological full and half-siblings, suggesting a genetic contribution to the determination of social class: it also correlates with that of their adoptive parents' biological children with whom they are reared, i.e., adoptive siblings, indicating an effect of the familial environment. The mean social class of adoptees lies above that of their nonadopted biological siblings, again indicative of an effect of the adoptive familial environment. Both the correlational and the mean level findings constitute a confirmation of earlier reports.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01068129
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Social class correlations among separately adopted siblings and unrelated individuals adopted together (1981)
    Springer
    Behavior genetics 11 (1981), S. 577-588 
    Details
    ISSN: 1573-3297
    Keywords: social class ; SES ; adoptees ; siblings ; inheritance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Psychology
    Notes: Abstract Small positive correlations for social class ratings are reported for separately adopted full siblings and for unrelated individuals adopted together. No such correlations were found for separately adopted maternal or paternal half-siblings.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01065792
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  • 3
    Electronic Resource
    Electronic Resource
    Intelligence in fathers and sons: Familial resemblances and generational differences (1987)
    Springer
    Behavior genetics 17 (1987), S. 279-289 
    Details
    ISSN: 1573-3297
    Keywords: intelligence ; educational level ; heredity ; family environment ; secular trend
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Psychology
    Notes: Abstract Intelligence test scores, educational levels, and height were obtained from Danish draft board records for three groups of fathers and sons: 25 biological fathers with sons who were adopted away, 17 stepfathers with stepsons, and 29 fathers with sons in intact families. Father-son correlations for intelligence suggest a modest heritability with little familial environmental effect, although a comparison of mean levels reveals some familial environmental effect for both intelligence and educational level. However, the correlations for educational level and height are somewhat inconsistent. In combination with earlier reported data on siblings, the present results may indicate genetic dominance effects for intelligence. Normative data show that the mean intelligence test score has risen between the paternal and the filial generations, possibly as a result of raised educational levels.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01065507
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    Paper (German National Licenses)
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