Intellpt2.post

Intellpt2.post - RoleofGenesandEnvironment

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Role of Genes and Environment Heritability: proportion of the trait in the whole population that is accounted for by genetic relatedness Overall, heritability of IQ is ~ .50 Genetic Influences Twin Studies : Monozygotic twins vs. Dizygotic twins Parent/child: 50% shared genes Siblings: 50% shared genes
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Types of Environmental Influences Shared Environments Prenatal Environment DZ twins are more similar than other 50%-shared DNA pairs Familial Environment Findings from adoption studies:
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Microenvironments Factors in one’s surroundings elicited by one’s interests and disposition Genetic influence on these may operate in separate households (non- shared environments) Complete “Explore”: Correlations between IQ’s of Persons of Varying Relationships Influences on IQ are genes, familial environment (“reared together”), nonshared environments (“reared apart”)
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Differences in IQ across Races GRE (graduate school admissions test) taps
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This note was uploaded on 04/07/2009 for the course PSYC 100 taught by Professor Madigan during the Fall '07 term at USC.

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Intellpt2.post - RoleofGenesandEnvironment

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