How does personality affect life outcomes (e. g. health, happiness, career, law, relationships, etc. Two main approaches to the study of personality: idiographic approach: try to understand each individual"s complex, unique features. It can help generate ideas to the way a person works. Ex: bill clinton had an abusive alcoholic step father, he may have became president to gain love and affection from many other people, that he didn"t receive from his father. It would take too long to study many people this way in order to see specific patterns. It doesn"t give a way to test ideas theories about personalities: ex: many people have problems with their fathers, not many people go on to be the. If he had a good father, would he still be a politician: nomothetic approach: try to understand all people in terms of personality variables. By measuring lots of people, and see how personalities are inter-related.