Abstract：With the coming of China's aging, the physical and mental health of the elderly has been paid more and more attention by the society. In recent years, positive psychology has been paid more and more attention to the development of mental health of the elderly.
Based on the theory of positive psychology, the current study investigated the mediating effects of hope and loneliness on the relationship between perceived social support and social well-being in the elderly by questionnaire survey. In addition, the indirect effect model of hope was verified to establish the relationship model among these three variables and to explore the internal mechanism that enhances the development of psychological well-being among the elderly.
The research findings indicate that :(1) social support, hope and loneliness are all related to social well-being; (2) social support plays a vital role in having an impact on social well-being of the elderly; (3) hope plays a partially mediating role in the relationship between social support and social well-being; (4) loneliness plays a partially mediating role in the relationship between social support and social well-being; (5) hope and loneliness play a part of the mediating role in examining the multiple mediating effects that social support affect social well-being.
The current study validates the impact of social support on social well-being and the partially mediating roles of hope and loneliness. Accordingly, this study enriches the positive psychology research, and to ease the psychological health of the elderly to provide an effective empirical basis, and it provides suggestions for the well-being education of the elderly. The study is beneficial to improve the mental health of the elderly in practice, to improve the awareness of the elderly to seek social support, and promote good mentality of the elderly training. In addition, the study is helpful to reduce the negative experience of loneliness, enhance their hope for future life , so that to enhance the social well - being of older people.