Investigating the Simple and Multiple Relationships of Personality trait, Spiritual Intelligence and Happiness with Life Satisfaction in High School Girl Students in Ilam City

Introduction: Life satisfaction is a comprehensive concept of sustainability that reflects the overall feelings of a community's people towards their own and the world in which they live. The aim of this study was to determine the simple and multiple relationships among personality traits, spiritual intelligence, and happiness with life satisfaction in high school girl students in Ilam. Methods & Materials: This is a descriptive correlational study that was conducted with 196 female high school students in Ilam. The study’s sample was multi-stage cluster sampling and the participants voluntarily participated in the study. The data were collected using the Diener Satisfaction with life scale, NEO-Five Factor Inventory, King's Spiritual Intelligence Inventory, and Oxford Happiness Questionnaire. Data were analyzed by SPSS software using descriptive statistics, Pearson correlation, and multiple regressions. Results: The mean age of the students was 16 ± 0.18 years. Among the personality traits, neuroticism had a reverse and significant correlation (r = -0.341) and extraversion (r = 0.247) and Agreeableness (r = 0.379) have direct and significant correlation with life satisfaction. However, openness and conscientiousness did not have a significant correlation with life satisfaction. Personality traits, spiritual intelligence and happiness together accounted for 38.3% of changes in students’ life satisfaction. Conclusion: According to correlation of life satisfaction with spiritual intelligence, happiness and personality traits of students, the attention of planners to these effective variables in order to promote their life satisfaction seems necessary.