Fraternal twins Jack and Jill have been raised in the same environment. Jill aspires to become a clinical psychologist while Jack intends to be a mechanical engineer. Their career choices most likely are due to sex differences that are expressed by their scores on the _____ dimension of personality.
Steve and Charlene's parents assign them different chores in the family. The parents assume that Steve will continue working on the family farm, so most of his chores are related to the business of agriculture. They assume Charlene will get married and have to maintain a household, so they assign her cooking and cleaning chores. The differential treatment that Steve and Charlene's parents give their children can best be explained by