| Chapter 2 Interactions between nature and nurture: Heritability estimates: calculate how much is due to genetic factors. Use twin and adoption studies IQ: correlation between children and biological parents increases with age correlation between children and adoptive parents decreases with age Environment plays a very important role early in life May think of biology as defining the range of potential and of environment as fulfilling this potential Range of reactions: genes may define an optimal range of interests and abilities the kind of environment has to fit with biological predispositions Canalization: tendency of heredity to restrict development to only a few outcomes; same with environment Genetic-environmental correlation: genes influence the environments we're exposed to Passive correlation: have no control over it Evocative correlation: children evoke responses from others Active correlation: pick environment that matches personal tendencies |