Background Event centrality, the extent to which an experience is perceived as a central event in one's life, has been found to be a strong correlate of posttraumatic stress disorder (PTSD). The centrality of event scale (CES) is commonly used in different conditions and cultures to measure trauma‐related effects. However, the psychometric properties of this scale have not been investigated in the Iranian context. Methods The present study examined the psychometric properties of the Persian translation of the 7‐item CES in a sample of 525 university students with a history of a romantic breakup. Results Confirmatory factor analysis confirmed a one‐factor structure. The CES score was positively correlated with psychological inflexibility and PTSD symptoms. The measurement invariance analyses showed that the 7‐item CES is gender invariant and can be used for both men and women. Findings Findings supported the good psychometric properties of the 7‐item CES for measuring event centrality in Iranian university students.

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Introduction: Personality is one of the important etiological factors of psychological factors. In this regard, one of the important factors in the success of people's social and psychological life is the light triad personality. They are a combination of sympathy, compassion, and humanity. On the basis of results of the research, it is not possible to trust the psychometrics characteristics of tools; it is necessary to evaluate the psychometric characteristics of these tools. Meanwhile, the aim of the present study is the evaluation of psychometrics characteristics of light triad personality in nurses. Methods:The statistical population includes all nurses who were employed in the summer and autumn of 2020 in private centers and hospitals affiliated with Mashhad University of Medical Sciences. The sample of this study was 245 nurses who were selected by convenience sampling. To analyze the data, exploratory and confirmatory factor analysis, Pearson correlation, total question-score correlation, and reliability analysis were used by using SPSS V22 and LISREL V8.80 software. Results:The results of exploratory and confirmatory factor analysis confirmed the three-factor structure of the light triad personality questionnaire. The findings of the convergent validity of the light triad personality questionnaire were evaluated and confirmed via its simultaneous implementation by the Social Health and Emotional Sympathy Questionnaires and its divergent reliability was confirmed by the Machiavellian Questionnaire. The reliability coefficient of the questionnaire was obtained for the factors of sympathy, compassion, philanthropy, and totality by using Cronbach's alpha coefficient, 0.83, 0.75, 0.70, and 0.92, respectively. Conclusion:Finally, with regard to the desired validity and reliability coefficients, ease of implementation, scoring, interpretation, and explanation, as well as a short time to answer, it can be said that light triad personality questionnaires were qualified for use in psychological research to measure the rate of light triad personality.

Gender dysphoria or gender identity disorder is a complicated psychological problem and has traumatic consequences for patients, their families, and society. The objective of this study was to evaluate the self-concept in patients with gender dysphoria and compare that with healthy individuals. Materials and Methods: This study compared sixty gender disappointments, including 15 patients undergone male-to-female gender reassignment, 15 patients undergone female-to-male gender reassignment as well as 15 males and 15 females requesting sex reassignment, with 30 healthy individuals (15 females and 15 males). Identity Style Inventory and self-concept test were used for this evaluation. Results: Our findings showed that style identity was different between patients with gender disappointments and healthy people. Patients with gender disappointments exhibited less informational identity than healthy individuals. In addition, patients underwent gender reassignment, especially male to female gender reassignment, showed higher score of informational identity than patients with requesting sex reassignment. Conclusion: Dissatisfaction of gender identity affects self-concept and identity in patients with gender disappointment.