mohammadamin abdolahpur

stress is an important criterion affecting personality on a general and minor level.

The present study aimed to assess the mediating role of stress in two diagnostic criteria of personality disorder, personality functioning (criterion A) and pathological personality traits (criterion B).

The research method was descriptive-correlational. The statistical population was students studying at the University of Kurdistan in the academic year 2020-2021. By the available sampling method, 313 (50.08% of women) completed online PID-5, LPFS and PSS-14 questionnaires. Data were analyzed by structural equation modelling and using AMOS software version 24 and SPSS.

The result of the direct path shows the mediating role of stress on personality detachment (0.85) and antagonism (0.88) traits. However, psychoticism, negative affectivity and disinhibition traits do not play a mediating role. In general, there was a positive relationship between stress and personality functioning (0.45) and personality traits (0.27).

The undeniable impact of stress on both personality functioning and personality traits is apparent. Broadly speaking, stress influences the alternative model of personality disorders, encompassing criteria A and B.

The personality inventory for ICD-11 (PiCD-11) was developed in line with the introduction of the International Classification of Diseases (ICD-11). This study aimed to investigate adaptation, validity, reliability, and factor structure of the PiCD-11 in an Iranian sample.

Participants in this study were (67.6% female, 32.8% clinical sample) 417 students from state universities in Tehran. They were requested to complete the paper-based forms of the Personality Inventory for ICD-11 (PiCD-11), the Short form of Personality inventory fo DSM-5 (PID- 5-BF), as well as the Big Five Inventory (very brief for, BFI-10).

Cronbach's alpha coefficient for five factors of the PiCD ranged from 0.73 (dissocial) to 0.82 (negative affectivity). The inventory domains also had a significant correlation (P=0.001) with PID-5-BF and BFI-10 scales. Exploratory and confirmatory factor analysis also confirmed the five-factor structure and optimal fit of the model related to the PiCD.

The 60-item inventory based on the International Classification of Diseases (PiCD-11) has good reliability and validity, and can be used for various clinical and research purposes in Iran for the Persian speaking population.