Dissertation
Dissertation > Philosophy, religion > Psychology > Developmental psychology ( human psychology ) > Adolescent psychology

The Relationship among Personality Traits, Depression and Delay Discounting in College Students

Author LiuXiLin
Tutor SongShangGui
School Jinan University
Course Developmental and Educational Psychology
Keywords Delay discounting The Big-Five personality Depression Mediating effect
CLC B844.2
Type Master's thesis
Year 2013
Downloads 19
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In daily life, we often make subjective assessment to an objective thing for the value. Onone hand, there are some different between subjective value and objective value, on the otherhand, this value can be influenced by time changes. Delay discounting refers to apsychological phenomenon that the current subjective value of a future outcome decreases asthe increasing day of delay, also known as temporal discounting. Recent studies about delaydiscounting have shown that there are some individual differences in delay discountingamong different subjects, and delay discounting can be influenced by personality trait (such asA-type personality, impulsive personality and the Big-Five personality), emotion state(such aspositive emotion and negative emotion, anticipated emotion and ambient emotion) and manyeffects of delay discounting itself(such as domain effect, sign effect, magnitude effect andframing effect). From the perspective of personality, we chose college student fromUniversity of Jinan as participants, using the paradigm of delay discounting and hypotheticalscenarios to investigate the relationship among the Big-Five personality, depression and delaydiscounting. From studies we obtained the results as below:(1) The gender differences, grade differences and differences of special field of study arenot significant on four delay discounting scenarios.(2) There is a significant positive correlation between extraversion and delay discountingat gain scenarios, and the correlation between agreeableness and delay discounting at lossscenarios is significant negative.(3) Extraversion and agreeableness is found to predict discounting rates at money gainscenario, agreeableness is found to predict discounting rates at money loss scenarios,extraversion is found to predict discounting rates at environment gain scenario, andagreeableness is found to predict discounting rates at environment loss scenarios.(4) The correlation between depression and delay discounting at money gain scenario issignificant negative, the correlation between depression and delay discounting at money lossscenario is significant positive, the correlation between depression and delay discounting atenvironment gain scenario is significant negative and the correlation between depression and delay discounting at environment loss scenario is significant positive.(5) Depression is found to predict individual’s delay discounting rate in different ways.(6) Depression mediates the relationship between Big-Five personality and delaydiscounting in different ways.

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