Calvin says, "to understand human personality, you have to know if people behave to get rewards or to avoid punishments." hobbes says, "i think that you also have to take into account each person's unique way of looking at the world and consider how that viewpoint determines personality." calvin uses the approach, while hobbes takes the approach to understanding personality. a. social-cognitive; traitb. social-cognitive; humanistic psychologyc. psychodynamic; social-cognitived. trait; psychodynamic