| Based on the Dual-Factor model of mental health,this study takes positive mental health as well as negative mental health as the two dimensions' standard to measure the mental health of college students.With 1064 Nanjing undergraduates as the research objects,using the cross-sectional study,relationship between three positive psychological variables and the mental health level is explored.At the same time,a longitudinal study was conducted to explore the changing tendency of both positive mental health and negative mental health of college students in the time dimension.In this study,the questionnaires were used to measure the positive mental health and negative mental health,Resilience Scale,LOT-R and Self-worth Scale were used to measure resilience,dispositional optimism and self-worth.The data came from the cross-sectional were analyzed by Bootstrap,using SPSS 22.0,and the data came from the longitudinal study were analyzed by Multilevel Model,using HLM6.08.The conclusions are as follows.(1).Resilience,dispositional optimism and self-worth was positive correlatedwith positive mental health while resilience,dispositional optimism and self-worth was negative correlated with negative mental health.(2).Resilience and self-worth have a significant completely mediating effect in the influence of dispositional optimism on positive mental health,in which the mediator effect of resilience is 0.14,and the mediating effect of self-worth is 0.08,the total mediating effect of the model is 0.22.(3).Resilience and self-worth have a significant completely mediating effect in the influence of dispositional optimism on negative mental health,in which the mediator effect of resilience is-0.21,and the mediator effect of self-worth is-0.09,the total mediating effect of the model is-0.31.(4).During the four years from 2012 to 2015,the positive psychological health of undergraduates increased significantly,the rate of increase was 2.04.Meanwhile,the negative mental health of undergraduates decreased significantly,the rate of decline was 0.15.According to the Dual-Factor model of mental health,it can be concluded that the overall mental health level of objects has improved in the four years.However,the rate of increase in positive mental health and the rate of decline in negative mental health were not tested at the individual differences.Last but not least,based on the conclusions,suggestions and measures on mental health service which for undergraduates are presented. |
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