初中生的社会比较对认知与情感信任的影响

he current study investigates that social comparison's effects on cognitive and affective trust of middle school students who are in different friendship states, and whether or not the two kinds of trust play mediation effects in the relationship between social comparison and intimacy change in friendship. 522 freshmen of middle school nominated one most intimate friend at the beginning of term. After midterm examination, they compared their own class ranks with their nominated friends' class ranks. Then subjects evaluated their cognitive and affective trust to their nominated friends. Finally, subjects reevaluated the intimacy of their nominated friends. The results shows that: (1)to the close friend, affective trust is higher than cognitive trust. Compared to downward comparison, upward comparison hurts affective trust. Social comparison has no effect on cognitive trust. (2) To the general friend, there is no difference between affective trust and cognitive trust. Compared to upward comparison, downward comparison hurts both affective trust and cognitive trust. (3) Cognitive trust plays a fully mediation effect in the relationship between social comparison and intimacy change in friendship, compared to upward comparison, downward comparison has an indirect negative effect on friendship intimacy through cognitive trust only.