PSY324H5 Study Guide - Midterm Guide: Positive Illusions, Twin Study, Life Satisfaction
Document Summary
Estimate how much genes contribute to the stability of a phenotype. How much it is possible to predict wellbeing 10-years from now based on an individual"s wellbeing now: r=. 5. If we simply divide people into two groups with relatively high and relatively low wellbeing, the chances to be again in the same group 10-years later is 75% If there were no stability, it would only be 50% (ex. Very high: heritability of wellbeing is only 40-50, high contribution of genes to the stable part of wellbeing implies that most of the changes in wellbeing are due to environmental factors. Possible that wellbeing changes only gradually in response to life-circumstances (ex. Possible that wellbeing shifts in response to life events that have a relatively brief effect on wellbeing: necessary to measure wellbeing repeatedly over relatively short re-test periods. Re-test correlations start at the highest possible level of r=1: nothing can change from now to now, real data.
