01:830:101 Lecture Notes - Lecture 6: Twin Study, Heritability, Heredity

• School: Rutgers University
• Department: Psychology
• Course: 01:830:101
• Professor: Dr. Brynildsen

Document Summary

Nature: humans enter the world with an inborn store of knowledge. Nurture: knowledge is acquired through experiences and interactions with the world. Genotype-environment interaction : different characteristics result from different combinations of genes and environment. Range of reaction : genetic makeup establishes range of possible developmental outcomes. Behavioral genetics : study of genetic bases of individual differences in behavior and personality. Heritability : statistical estimate of contribution of heredity to individual differences. Family studies : measure degree to which biological relatives share certain traits. Adoption studies : compare adopted children to adoptive families and biological families. Twin studies : compare monozygotic (identical) and same-sex dizygotic (fraternal) twins. Concordance rate : the rate of similarity between twins; ranges from 0. 0-1. 0. Adoption twin studies : compare monozygotic twins separated in infancy and monozygotic twins reared apart. Temperament and personality: tied to genetics; 50% heritable.