Psych 140 Dis feb 13

Psych 140 Dis feb 13 - Psych 140 Dis Feb 13 2008 Behavior...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Psych 140 Dis. Feb. 13, 2008 - Behavior and traits – interaction between genes and environment - Heritability – a statistical measurement that estimates the genetic influence on traits in a given environment - Heritability coefficient – h^2 = variation in a population due to genes/total variation in the environment - (find total variation by calculating the mean) - Variance = the sum of [(the score – the mean)^2] / n-1 - The general population’s risk of schizophrenia is about 1%, however if you have an aunt or uncle with it the risk increases to 2%, parent = 6%, sibling=9%, identical twin=48% - Difficult to separate genetic influences from environment studies. (very much intertwined) Solution = adoption studies - Monozygotic twins – Twins that come from on zygote and therefore have identical genotypes (share all genetic material) - Dizygotic twins – Twins that come from two zygotes (share 50% of genetic material) - Monozygotic twins raised apart yields the most information about the influence of
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Ask a homework question - tutors are online