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* {{cite journal | author=Bouchard TJ Jr, Lykken DT, McGue M, Segal NL, Tellegen A | title=Sources of human psychological differences: the Minnesota Study of Twins Reared Apart | journal=Science | year=1990 | volume=250 | pages=223–228 | id=PMID 2218526}} |
* {{cite journal | author=Bouchard TJ Jr, Lykken DT, McGue M, Segal NL, Tellegen A | title=Sources of human psychological differences: the Minnesota Study of Twins Reared Apart | journal=Science | year=1990 | volume=250 | pages=223–228 | id=PMID 2218526}} |
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[[Category:Longitudinal studies]] |
[[Category:Longitudinal studies]] |
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[[Category:Genetics]] |
[[Category:Genetics]] |
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Revision as of 19:33, 29 October 2006
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The Minnesota Twin Family Study is a longitudinal study of twins conducted by researchers at the University of Minnesota. It seeks to identify the genetic and environmental influences on the development of psychological traits.
Principal investigators are David T. Lykken, Matt McGue, William Iacono, and Kevin Haroian. It involves several independent but related projects:
- Minnesota Twin Registry
- Minnesota Twin Study of Adult Development
- Minnesota Twin Family Study (Male Project)
- Minnesota Twin Family Study (Female Project)
Its original goal in 1983 was to establish a registry of all twins born in Minnesota from 1936 to 1955, but it has now added twins born between 1961 and 1964. Twin studies are valuable to researchers because twins share 100% of their genes in identical twins and on average 50% of their genes in fraternal twins. This allows researchers to estimate the heritability of certain traits. Participants are asked about academic ability, personality, and interests; family and social relationships; mental and physical health; physiological measurements. Of interest to researchers are prevalence of psychopathology, drug use, divorce, leadership, and other traits and behaviors.
The Minnesota Study of Twins Reared Apart
In 1990, the project published the results of their study of twins reared apart.
External links
- Minnesota Twin Family Study website via University of Minnesota
- Minnesota Twin Family Registry: Some initial findings
References
- Bouchard TJ Jr, Lykken DT, McGue M, Segal NL, Tellegen A (1990). Sources of human psychological differences: the Minnesota Study of Twins Reared Apart. Science 250: 223–228. PMID 2218526.
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