Document Type : Research Paper
Authors
1 M.Sc of Clinical Psychology, Department of Psychology, Faculty of Psychology and Educational Science, University of Shiraz, Shiraz, Iran.
2 M.Sc of General Psychology, Department of Psychology, Faculty of Psychology and Educational Science, Kharazmi University of Tehran, Tehran, Iran.
3 Associate Professor, Department of Psychology, Faculty of Psychology and Educational Science, University of Shiraz, Shiraz,, Iran.
4 Phd in educational measurement and evaluation, Faculty of Psychology and Educational Science, University of Tehran, Tehran, Iran.
Abstract
The aim of the present study was to evaluate the mediating role of prejudice in the relationship between dichotomous thinking, aggression and suicidal ideation. The present study design was descriptive-correlational. The statistical population of this study was undergraduate students of Shiraz University in the academic year 2014-2015. From this population, a sample of 232 students (119 girls and 113 boys) was selected using cluster random sampling method and they responded to the Oshio Dichotomous Thinking Inventory (DTI), the Novaco Aggression Scale (AGQ), the Mohseni Prejudice Scale and the Beck Suicidal Ideation Scale (BSSI). SPSS and AMOS software were used to analyze the data through structural equation modeling, and the bootstrap method in the macro program of Preacher and Hayes (2008) was used to examine the role of the mediator variable. According to the results, the structural model of the study has a good fit. The results showed that dichotomous thinking has no direct effect on aggression (p<0.58, β=0.04) and suicidal ideation (p<0.23, β=0.09) and has a direct effect on prejudice (p<0.28, β=0.007). In addition, prejudice has a direct effect on aggression (p<0.0001, β=0.37) and suicidal ideation (p<0.04, β=0.18). In general, it was found that dichotomous thinking has an indirect effect on aggression (p<0.003, β=0.11) and suicidal ideation (p<0.001, β=0.06) through prejudice, and the relationship between dichotomous thinking and aggression and suicidal ideation without the mediation of prejudice is not significant. Therefore, the mediation role of prejudice was confirmed. Overall, it can be concluded that dichotomous or categorical thinking is related to prejudice, and prejudice can also be a significant predictor of aggression and suicidal ideation. The findings of this study have practical implications for cognitive therapy of disorders with aggressive and self-injurious behavioral symptoms.
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