PSYCH211 Study Guide - Midterm Guide: Retina, Jerky, Pacifier

• School: University of Waterloo
• Department: Psychology
• Course: PSYCH211
• Professor: Jennifer Schulenberg

Document Summary

Chapter 4 nature, nurture and development: heritability & behavioral genetics, facultative adaptation & learning. Headlines like 67% of intelligence is due to genetics are misleading. However, if you separate people into heavy internet use vs low internet use, there might be some trait that is somehow linked with internet use. 1) to extent that genetics is important: genotypic similarity -> phenotypic similarity. The more similar two people"s genes are, the more likely that they are similar (phenotypically) genotype: actual genes. phenotype: traits shown. 2) to extent environment is important: similar environment -> phenotypic similarity. Look at some traits (e. g. smart, sociable, aggression, psychotic, height) Problem: families may share or differ in environments. Adopted person & adopted family (e. g. , parents, siblings) Adopted person & biological family (e. g. , parents, siblings) If mz twins show stronger correlation, implies importance of genetics. Statistical estimate of proportion of variance on a given trait among individuals in a given population that is attributable to genetic differences.