PSYC 2330 Chapter Notes - Chapter 6: Behavioural Genetics, Twin, Trait Theory
14 Apr 2013
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Document Summary
Eugenics: the notion that we can design the future of the human species by fostering the reproduction of persons with certain traits and by discouraging the reproduction of persons without those traits. Certain people would not be allowed to reproduce. Percentage of variance: refers to the fact that individuals vary, or are different from each other, and this variability can be partitioned into percentages that are due to different causes (genetics and environment) Is a statistic that refers to the proportion of observed variance in a group of individuals that can be accounted for by genetic variance. (amount of phenotypic variance in a group due to genotypic variance) Provides useful information in identifying the genetic and environmental determinants of personality. Phenotypic variance: refers to observed individual differences, such as height, weight, or personality. Genotypic variance: refers to individual differences in the total collection of genes possessed by each person. Environmentality: amount of observed variance due to environment (non-genetic)
