PSYCH 210 Lecture Notes - Lecture 4: Twin Study, Extraversion And Introversion, Neuroticism
3 Feb 2017
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2. 8 explain how the environment and genetics work together to determine human characteristics. 2. 9 summarize the methods by which researchers study the interaction of genetic and environmental factors in development. 2. 10 examine how genetics and the environment jointly influence physical traits, intelligence, and personality. 2. 11 describe ways in which genes influence the environment. From genotypes to phenotypes: a given behavior is not caused solely by genetic factors; nor is it caused solely by environmental forces, multifactorial transmission. Intelligence may be explained by a range of differing possible sources, spanning the nature nurture continuum. Nonhuman animal studies: controlling genetics and environment. Human studies: adoption, twin studies, family studies. What motivates this research: relative contributions of nature and nurture are highly researched, closer genetic link = greater correspondence of overall iq scores. The closer the genetic link between two individuals, the greater the correspondence between their iq s(cid:272)ores.
