This study was intended to investigate the effects of need for approval on academic procrastination of
high school students and to verify the mediating effect of evaluative concerns perfectionism and self-efficacy
in the process. All the results and data obtained from this research were all gained from conducting
surveys on 470 male and female students from 5 academic high schools. Mediating effects were verified
through multiple regression analysis and results of Sobel test to verify the significance of mediating effects
are as follows. Firstly, need for approval and evaluative concerns perfectionism showed positive relationship
with academic procrastination, and self-efficacy showed negative relationship with academic procrastination.
Secondly, mediating effect of evaluative concerns perfectionism for the effect of need for approval on
academic procrastination showed partial mediating effect. Thirdly, it was identified that the whole
self-efficacy makes partial mediating effect in a relationship between need for approval and academic
procrastination. As a result, it was verified that higher need for approval makes effect on academic
procrastination of high school students, evaluative concerns perfectionism and self-efficacy can contribute to
the changes in academic procrastination as a partial mediator, and can be used as preliminary data of
counseling and preventive intervention.