Evolutionists think that genetics are the key to everything. Personality aspects are the result of evolution by selection – they exist and endured because they are adaptive to survival and reproductive success. They should be found cross-culturally and are transmitted via genes. The focus is on the species ‘humans’, not the individual human being.
The key elements of the evolutionary perspective are:
Men want young women, women want rich men. Women are worried about emotional cheating, men more so about sexual cheating (which may have to do with the fact that, if a woman cheats, he might not end up being the father of her children) (however, studies show that in tests, men just think of sex and become aroused).
Trait terms emerged to help categorise people’s behaviours. Language may thus not only describe current behaviours but also behaviours that evolved a long time ago and were important throughout time (e.g. ‘active’, ‘dominant’, ‘passive’, ‘submissive’, ‘agreeable’, ’emotional’, ‘smart’ – if people wondered about these things, the terms would eventually enter their lexicon). Or, a trait might exist because it’s been vital to human adaption (extroversion might be needed to get along with others and thus promote survival).