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The purpose of this study was to find ways to improve self-esteem, which is one of the important factors in children’s quality of life. This study examined the relationship between overall happiness, peer attachment, and self-esteem and the mediating role of peer attachment in the effect of children’s overall happiness on self-esteem. The subjects of the study are 1,349 children who participated in the 11th year(2018) of the Korea Children’s Panel, which was collected by the Institute for Child Care Policy. We utilize the SPSS26.0 program to perform frequency analysis, Pearson correlation analysis, Multiple linear regression analysis and Baron & Kenny’s(1986) three-level hierarchical regression analysis. The Process Macro Model 4 was used to test the significance of self-esteem. The results are as follows: First, based on the research, overall happiness was the highest level on average. And the relationship between all the variables that influenced child self-esteem shows that communication and trust and overall happiness during peer attachment have a significant static relationship with children’s self-esteem, but alienation has an inadequate relationship with overall happiness and self-esteem. On the other hand, communication, trust in peer attachment and overall happiness have been shown to have a significant static effect on children’s self-esteem, but alienation in peer attachment has no effect on self-esteem. After examining the mediating role of peer attachment in the influence of overall happiness on self-esteem, it was found that communication and trust played a partial role in self-esteem, and alienation played a full role in self-esteem. Through the Hayes(2013)’ SPSS MACRO of bootstrapping verification, the effect of happiness on self-esteem, peer attachment played a partial role in self-esteem.
Hong et al. (Sun,) studied this question.