PSYC370 Chapter Notes - Chapter 9: Behavioural Genetics, Determinism, Epigenetics
11 Jan 2017
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Chapter 9: the inheritance of personality: behavioral genetics and evolutionary. Controversy parent to child and shared by biological relatives. How individual differences in behavior (personality traits) are passed from (cid:498)trait(cid:499) genetics. Eugenics breeding and cloning (slim chance of this because environment. People may think outcomes like intelligence, poverty, criminality are simply makes big contributions) fixed into genes. Degree to which variation in the phenotype (observable traits) can be attributed to the genotype. Mother shares 50% of the genetic material that varies across individuals: behavioral genetics focuses on the aspects of personality that differ from one individual to another. Assumption: if a trait/behavior is influenced by genes, then the trait and behavioral scores of identical twins ought to be more highly correlated than scores of fraternal twins. Heritability coefficient: hq = (rm2 rd2) x 2. Average correlation across traits is . 6 for m2, and . 4 for d2 times by 2 gives.
