Psychology 2070A/B Lecture 12: Lecture #12 - helping others.docx

• School: Western University
• Department: Psychology
• Course: Psychology 2070A/B
• Professor: James M Olson

Document Summary

Evolutionary pressures: natural selection darwin proposed that factors increasing our chances of reproduction will be selected risk, so helping behaviours may not increase our chances of reproduction as it can put you at. So we are more likely to let a close relative borrow our car: smith, kish, and crawford 1987. Used archival records of wills in bc and found that individuals bequeathed (to give or leave by will) to recipients as a function of genetic relatedness. 50% genetic relatedness (immediate family: sibling, child, parent) = 50% named in the will. 25% relatedness (nieces, nephews, aunts, uncles) = around 10% named in will. 12. 5% relatedness (cousins) = less than 5% names in the will. The other major group is spouses although they are non-related they are genetically related to the offspring (so they have a special and important place in the will: burnstein, crandall, and kitayama 1994. Investigated factors that influence how much we kelp kin across different situations.