PSYCH 2B03 Lecture Notes - Lecture 10: Assortative Mating, Twin Study, Unification Church
18 Dec 2015
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Type theories believe that we are gifted genetically with types of traits, traits interconnected. Trait models say the same thing we have a biological based traits, even psychodynamic model assume pre existing parts. Shared environmental factors ex. raised in the same family with siblings, we go to the same schools, same school, same culture. Non shared environment ex. treated di erently because of initial personality, gender, age, people respond to that. We use twin studies to study personality, same genotype, look at di erence in phenotype. >monozygotic = mz, they develop from a single fertilized egg, the two split eggs begin to develop independently who share genotype 100% in common. >dizygotic = dz, twins born at the same time, developed from 2 di erent eggs, fertilize at the same time 50% same genotype on the average as any brother and sister do. >if any phenotypic characteristic is shaped by the genetics that mean the correlation that.
