فهرست مطالب رومینا حسن تهرانی

Neuroticism is considered one of the important characteristics in the field of psychology for predicting people's behavior, which is based on negative and undesirable experiences and emotions. Much research on the available prediction models based on Attachment styles and psychological well-being has been done, but the mediating role of uncertainty intolerance in this process has not been investigated.

The purpose of the current research was to predict neuroticism traits based on various attachment styles and psychological well-being with the mediation of uncertainty intolerance in college students.

The descriptive-correlation research method of structural equation modeling and the statistical population of the present study includes all students of Islamic Azad University, North Tehran branch. According to Morgan's table, the sample size was 398 people who were selected from among all students in April and May of 2023 as a multi-stage random sampling. The data collection tools in this research include four questionnaires of adult attachment styles, Hazan and Shaver (1987), Riff's psychological well-being short form (1989), NEO-FFI short form by Costa and McCree (1994), and Freestone's uncertainty intolerance scale. Research hypotheses were investigated using structural equation modeling and with the help of PLS software.

The results showed that there is a negative and significant correlation between the variable of psychological well-being and secure attachment style with the variable of neuroticism, and there is a positive and significant correlation between the variable of ambivalent attachment style and the variable of neuroticism (P<0.01). The path indicates the significance of the indirect effect of avoidant and ambivalent attachment style through the variable intolerance of uncertainty on neuroticism (P<0.01) and according to the variance inclusion index of the variables of intolerance of uncertainty as mediating variables in the relationship between styles Avoidant and ambivalent attachment were confirmed with psychopathy (VAF>0.20).

The findings obtained provide numerous practical applications in the fields of student counseling, educational planning, and personality development. Universities and higher education institutions can design intervention programs to strengthen psychological well-being and encourage secure attachment styles among students, both of which contribute to the reduction of neuroticism