Psychology Dictionary of ArgumentsHome
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| Adoption studies: Adoption studies in psychology examine the influence of genetic and environmental factors on individual development by comparing adopted individuals with their biological and adoptive families. These studies help distinguish between the impact of genes and upbringing on various traits and behaviors. See also Heritability._____________Annotation: The above characterizations of concepts are neither definitions nor exhausting presentations of problems related to them. Instead, they are intended to give a short introduction to the contributions below. – Lexicon of Arguments. | |||
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Behavioral Genetics on Adoption Studies - Dictionary of Arguments
Corr I 290 Adoption Studies/behavioral genetics/Munafò: Analyses of the heritability of personality traits based on twin samples alone have consistently indicated higher heritability coefficients than those based on twin, adoption and family samples, with sibling-sibling correlations of 0.17 and parent-offspring correlations of 0.14 (Bouchard and Loehlin 2001)(1). These values suggest heritability coefficients of the order of approximately 30 per cent, compared to those of 50 per cent suggested by twin studies. One possible explanation for this is the presence of non-additive genetic effects (i.e., gene × gene interactions) which would result in higher levels of similarity between MZ (monozygotic) twins than DZ (dizygotic) twins, but would not contribute to the similarity of offspring to parents (Bouchard and McGrue 2003)(2). >Heritability, >Twin studies. 1. Bouchard, T. J., Jr and Loehlin, J. C. 2001. Genes, evolution, and personality, Behavioural Genetics 31: 243–73 2. Bouchard, T. J., Jr and McGue, M. 2003. Genetic and environmental influences on human psychological differences, Journal of Neurobiology 54: 4–45 Marcus R. Munafò,“Behavioural genetics: from variance to DNA“, in: Corr, Ph. J. & Matthews, G. (eds.)2009. The Cambridge handbook of Personality Psychology. New York: Cambridge University Press_____________Explanation of symbols: Roman numerals indicate the source, arabic numerals indicate the page number. The corresponding books are indicated on the right hand side. ((s)…): Comment by the sender of the contribution. Translations: Dictionary of Arguments The note [Concept/Author], [Author1]Vs[Author2] or [Author]Vs[term] resp. "problem:"/"solution:", "old:"/"new:" and "thesis:" is an addition from the Dictionary of Arguments. If a German edition is specified, the page numbers refer to this edition. |
Behavioral Genetics Corr I Philip J. Corr Gerald Matthews The Cambridge Handbook of Personality Psychology New York 2009 Corr II Philip J. Corr (Ed.) Personality and Individual Differences - Revisiting the classical studies Singapore, Washington DC, Melbourne 2018 |
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> Counter arguments in relation to Adoption Studies
