Psychometric Properties of the Persian Version of the Dispositional Resiliency Scale: A Brief Hardiness Measurement Scale

Dispositional Resiliency is an important area of military-related research. Due to the importance of resilience, the development of appropriate tools for evaluating and measuring it has been considered by researchers. The purpose of this study was to investigate the factor structure and psychometric properties of the Persian version of the Dispositional Resiliency Scale.

This study is descriptive and psychometric research. The statistical population of this study was one of the military units based in Tehran. From this population, based on inclusion and exclusion criteria, 310 people were selected by the available sampling method. The instruments used were the 15-item Dispositional Resilience Scale (DRS-15), the Depression, Anxiety, and Stress Scale (DASS-42), and the Generic Job Satisfaction Scale (GJSS). The factor structure of the questionnaire was examined using confirmatory factor analysis. Also, divergent validity was assessed with the DASS-42 questionnaire, and convergent validity was assessed with the job satisfaction questionnaire and in order to determine the reliability, test-retest methods and calculation of Cronbachchr('39')s alpha coefficient were used. The collected data were analyzed using version 25 of SPSS software, version 22 of AMOS software.

The results of confirmatory factor analysis determined hierarchical model that three first-order factors (commitment, control and challenge) are explained by a higher-order factor (χ2/df = 1.21, GFI = 0.95, CFI = 0.99, SRMR = 0.02, TLI = 0.99, RMSEA = 0.02). The correlation of the total score of DRS-15 with depression (-0.42), anxiety (-0.37), stress (-0.37), and job satisfaction (0.37) was significant (P < 0.01). Also, the internal consistency of the factors assessed by Cronbachchr('39')s alpha method was from 0.87 to 0.88, and the test-retest reliability after a 4-week interval was confirmed (commitment: r = 0.78; control: r = 0.88; challenge: r = 0.75; hardiness: r = 0.82, P <0.01).

Based on the present study results, the Dispositional Resilience Scale (DRS-15) is a suitable tool with good psychometric properties to measure Hardiness.