The Persian COVID-19 Anxiety Syndrome Scale (C-19ASS): Psychometric properties in a general community sample of Iranians.

There is a potential for a long-lasting psychological and social impact from the COVID-19 pandemic. Recently, the COVID-19 Anxiety Syndrome Scale (C19-ASS) has been developed, which measures individuals' coping mechanisms in relation to the fear or threat of COVID-19. The C19-ASS was developed and has been used so far only in Western samples. Further psychometric evaluation is needed in ethnically diverse samples. Therefore, the current study sought to test the psychometric properties in a large sample of Iranians (n = 1429; female = 52.1%; Mean age = 35.83, ±12.89) who completed a cross-sectional survey. Exploratory factor analysis revealed that the Persian C19-ASS has a two-factor structure corresponding to the perseveration and avoidance subscales of the original scale. Confirmatory factor analyses also supported a two-factor solution, which showed a firm model fit and high internal consistencies. Furthermore, it showed excellent divergent validity from generalized anxiety, indicating that it is concerned explicitly with COVID-19, supported by correlational analyses and exploratory factor analysis. Test of incremental validity indicated the Persian C19-ASS explained more variance in functional impairment and COVID-19 anxiety than the gender, marital and educational status, generalized anxiety, neuroticism, openness, consciousness and having lost someone close due to COVID-19. Also, based on a mediation test, it was found that C19-ASS mediates the relationship between the Big Five personality traits (except openness and consciousness) and health anxiety, generalized anxiety, depression and COVID-19 anxiety. Overall, the current findings provide further evidence for the construct of the COVID-19 anxiety syndrome. The COVID-19 anxiety syndrome is discussed in light of the S-REF model that provides an explanatory framework for this pandemic-related construct.