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This study aimed to verify the dual mediating effect of growth mindset and grit in the association between body image and successful aging in the elderly. The research questions to achieve the purpose of the study are as follows. First, what is the correlation between body image, growth mindset, grit, and successful aging? Second, do growth mindset and grit have a double mediating effect in the relationship between body image and successful aging? For the analysis, SPSS WIn.25.0 and PROCESS macro 3.5.3, frequency analysis, reliability analysis, correlation analysis, and dual mediation effect analysis were performed. As a result of the study, first, there were significant positive correlations between body image, growth mindset, grit, and successful aging. Among them, there was the highest correlation between growth mindset and grit. Second, the body image had a significant and positive effect on growth mindset, growth mindset had a positive and positive effect on hope, and hope had a positive effect on successful aging. The indirect effect of the path from body image to successful aging through growth mindset and grit was also significant. That is, the growth mindset and grit had a double mediating effect in the relationship between body image and successful aging of the elderly. These results are intended to be used as a new practical model for successful aging using the elderly's body image and psychological variables.

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Introduction. Child-care teachers who deal with colleagues, young children and parents are under a lot of stress. In addition, incivility at workplace, which are invisible non-social behaviors, further aggravate stress. Research is needed to relieve stress caused by such organizational incivility. This study tried to elucidate the role of grit in effects of job stress and gratitude on the relationship between organizational incivility and life satisfaction of child-care teachers. Study participants and methods. Subjects of this study were 323 teachers who worked at daycare centers located in S, A, and C cities in Korea. there were 97.8% females and 2.2% males. The most common age group was in the 40s (38.8%), followed by the 50s (24.7%) and 30s (19.9%). For analysis, frequency analysis, reliability analysis, and correlation analysis were performed using SPSS 25.0. Moderated mediation effect was analyzed using PROCESS macro 3.5.3. Results. First, there were significant correlations among organizational incivility, job stress, gratitude, grit, and life satisfaction. Gratitude and life satisfaction had the highest correlation (r = 0.495, p < 0.01), and followed by the correlation between job stress and organizational incivility (r = 0.436, p < 0.01). Second, a moderated mediation effect of grit on the path from organizational incivility to life satisfaction via job stress and gratitude was verified. The conditional indirect effect of grit on the relationship of organizational incivility → job stress → gratitude → life satisfaction was all significant when grit was low (-.5266, -.0933 ~ -.0207), average (.0000, -.1156 ~ -.0396), and high (.5266, -.1515 ~ -.0471). Conclusions. Therefore, we found grit’s moderated mediation effect which increases gratitude and life satisfaction of child-care teachers with high incivility and job stress at workplace. These research results are significant in that they provided an alternative for improving the quality of childcare services in a situation where life satisfaction of childcare teachers has a high causal relationship with the quality of childcare services. In addition, since the role of grit was verified in this study result, it will be possible to contribute to improving the life satisfaction of childcare teachers and improving childcare service by utilizing the enhancement of grit.