AdolF11Lecture6PostPDF

AdolF11Lecture6PostPDF - How Much? Heritability Estimate :...

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Unformatted text preview: How Much? Heritability Estimate : measure extent to which individual differences in complex traits within a population are due to genetic factors Kinship studies: compare characteristics of family members; Twin studies: is trait more similar between identical twins than fraternal twins? How much? Concordance rates: % of instances in which both twins show a trait when it is present in one twin 100% in identical twins = all heredity; no effect of environment L. Dickson 2010 Wednesday, September 21, 2011 Criticisms/Limitations Tend to overestimate Does not reveal Does not suggest Can be misapplied Eg: L. Dickson 2010 Wednesday, September 21, 2011 One answer to the HOW? question Gene-Environment Correlations 3 different types of G-E Correlations L. Dickson 2010 Wednesday, September 21, 2011 G-E Correlations: PASSIVE an environment compatible with Environment is related to (correlated with) childs heredity. (Given that child is biologically related to parents) Eg: athletically inclined parents bring kids on hikes; enroll them in sports; play catch in backyard supports development of athletic skills L. Dickson 2010 Wednesday, September 21, 2011 G-E Correlations: EVOCATIVE Child behaves in ways consistent with her own heredity, These behaviors strengthens childs original response Eg....
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This note was uploaded on 10/09/2011 for the course PSYCHLOGY 333 taught by Professor Dickson during the Spring '11 term at Rutgers.

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AdolF11Lecture6PostPDF - How Much? Heritability Estimate :...

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