7Behavioral Genetics Major Findings feb.4

7Behavioral Genetics Major Findings feb.4 - Behavioral...

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Behavioral Genetics Major Findings : -Heritability of personality traits. Big 5 = about 50% Sexual Orientation -Controversial and developing area -Genes --> modest and indirect influence on adult sexual orientation -Estimated 30 - 70% -Childhood Gender nonconformity Attitudes and Preferences -A lot of variance in heritability -depends on the attitude -Some show high heritability -traditionalism (.63) - Favoring conservative values over modern values -Job Preference -Study: Adopted/Genetic P's and Parents rate 100 jobs -Genetic 71% of job prefs positively correlated -Adopted 3% -Other attitudes show low/no heritability -belief in God -attitudes toward racial integration What makes an attitude heritable? -No clear answer Drinking and smoking Related to -Sensation seeking -Extraversion -Neuroticism Both alcoholism and smoking addiction show evidence of heritability -higher for alcoholism Environmental Influences >studies that show moderate heritability also hint at importance of env. influences >Personality Characteristics
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7Behavioral Genetics Major Findings feb.4 - Behavioral...

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