Evolutionary psychology maintains that sex differences develop biologically as people adapt to changes in the environment.
The main focus in evolutionary psychology is reproduction of future generations.
Social structural theory views sex differences as built-in tendencies to attempt to accommodate assignment to social roles (Eagly & Wood, 1999).
This theory emphasizes that mate selection by women is not only focused on reproduction of childen but also on power and social status.
Each performance by one sex determines its placement in the social structure.
Evolutionary psychology indicates that characteristics that people seek in mates depend on their sex and whether it is a short-term or a long-term mating.
Women are limited in the number of children they can have during their lifetime.
Because men and women tend to have different social roles, they become psychologically different to adjust to their social roles (Eagly & Wood, 1999).
The differences between genders are not based psychologically but are influenced socially.