Psychology 1000 Lecture Notes - Lecture 9: Muscle Atrophy, Cyril Burt, Project 25

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Dr.Mike

Document Summary

Reviewed the difference between genotype and phenotype, dominant and recessive. Polygenetic effects traits related to action of more than 1 gene or chromosome. Estimate of how much observed variability due to genetic factors alone. If everybody has the same trait and nothing changes, there is no heritability so the answer would be h2=0. Note: h2 increases as genetic diversity increases, h2 decreases as environmental diversity increases. Differences between groups is due to the environment. Identical twins are 100% related: fraternal twins are 50% related, parents are siblings are 50% related, grandparents, uncle, aunt are 25% related. Galton wrote a book called hereditary genius in 1869. Looked if sons of intelligent people we"re intelligent and successful; and they were: adopted sons of intelligent men were not, measured simple motor and sensory abilities (reaction times) faster you react: higher the. Iq: believes that intelligence was unitary (mental quickness, he developed correlation coefficient, results were disappointing results were unrelated.