Purpose: The aim of this research was predicting social skills in single child adolescents based on attachment styles and creativity with mediating role of moral intelligence. Methodology: This was a cross-sectional study from type of correlation. The research population was 3957 single child adolescent students in areas one to three of Tehran city in 2019-2020 academic years. Based on Cochran's formula, the sample size was estimated 350 people who were selected by multi-stage cluster sampling method. To collect data used from the questionnaires of social skills (Inderbitzen & Foster, 1992), attachment styles (Hazan & Shaver, 1987), creativity (Torrance, 1992) and moral intelligence (Lennick & Kiel, 2005). Data were analyzed by structural equation modeling method from type of path analysis in LISREL software version 8.8. Findings: The findings showed that secure attachment and creativity had a direct and significant effect on moral intelligence and social skills, avoidant and ambivalent insecure attachments had a direct and significant effect on moral intelligence and social skills and moral intelligence had a direct and significant effect on social skills. Also, secure, insecure avoidant and insecure ambivalent attachments, avoidant and ambivalent insecure attachments and creativity with mediating role of moral intelligence had an indirect and significant effect on social skills (P<0.05). The model had a good fit and moral intelligence was a good mediator between attachment styles and creativity with social skills. Conclusion: According to the results, to improve social skills can be increased the rate of secure attachment style, creativity and moral intelligence and decreased the rate of avoidant and ambivalent insecure attachment styles.
