Mona Ajabi - M.A., Department of Psychology, Karaj Branch, Islamic Azad University, Karaj, Iran.
Robabeh Ataiefar - Assistant Professor, Department of Psychology, Karaj Branch, Islamic Azad University, Karaj, Iran.
Nahid Havasi - Assistant Professor, Department of Psychology, Karaj Branch, Islamic Azad University, Karaj, Iran.

Background and objectives: Diabetes is the fifth leading cause of death in most countries of the world and causes disability, disability, high medical costs, and increased mortality. The aim of this study was to predict the meaning of life based on moral development and cognitive styles in patients with type ۲ diabetes.Methods: This study was an applied and descriptive-correlational study. The statistical population consisted of all patients of the Karaj Diabetes Association in ۲۰۱۹, among whom ۲۰۰ were selected by convenience sampling method and Cochran formula. In order to collect data, the Meaning of Life Questionnaire of Steger et al. (۲۰۰۶), Kolberg's Moral development Test (۱۹۸۱), and Kolb Cognitive Styles Scale (۱۹۸۱) were used. Pearson correlation test and multiple linear regression were used to analyze the data. Data were analyzed by SPSS software version ۲۳, and the significance level was ۰.۰۵.Results: The results showed that moral development and cognitive styles have a positive and significant relationship with the meaning of life in people with diabetes (p <۰.۰۰۱) and altruism, moral development level, objective experience cognitive style, reflective observation, abstract conceptualization, and active testing can predict the meaning of life in people with diabetes (p <۰.۰۰۱)Conclusion: It can be concluded that moral development and cognitive styles can predict the meaning of life among people with type ۲ diabetes and these results support the importance of the role of the meaning of life in people with type ۲ diabetes.

Moral Development, Diabetes Mellitus, personality, cognition