Psychometric Properties of the Arabic Version of the PROMIS Sleep Disturbance 8b Short Form Among Nurses

The PROMIS Sleep Disturbance Short Form 8b (PROMIS SD-SF-8b) is an 8-item self-report measure evaluating two dimensions of sleep disturbance: Insomnia symptoms and dissatisfaction with sleep. This study aims to validate the PROMIS SD-SF-8b for use among Arab nurses. A cross-sectional, descriptive, correlational design was employed. The instrument underwent a rigorous five-step cross-cultural adaptation process. Psychometric testing included descriptive statistics, internal consistency analysis, test-retest reliability, exploratory and confirmatory factor analyses (EFA, CFA), and evaluation of convergent and discriminant validity. The Ar-PROMIS SD-SF-8b demonstrated excellent internal consistency (Cronbach's alpha = 0.81; McDonald's omega = 0.82) and test-retest reliability (ICC = 0.90). EFA revealed a two-factor structure explaining 57.44% of the total variance. CFA supported the two-factor model (CFI = 0.96, RMSEA = 0.07, CMIN/df = 2.03). Composite reliability exceeded average variance extracted, indicating strong convergent validity. The AVE values surpassed the MSV values, further supporting the discriminant validity of the Ar-PROMIS SD-SF-8b. No significant floor or ceiling effects were observed, indirectly suggesting the instrument's robustness and sensitivity to detect variations in sleep disturbance among Arab nurses. The Ar-PROMIS SD-SF-8b is a valid and reliable instrument for assessing sleep disturbance among Arab nurses. By providing precise measurement of sleep-related impairments, this instrument can aid healthcare organizations and researchers in identifying nurses at risk and effectively monitoring sleep-related outcomes, thereby facilitating the implementation of targeted occupational health and well-being interventions. Its application may inform targeted interventions and broader evaluations in culturally comparable healthcare settings.