Development and Validation of the Multidimensional COVID-19 Vaccine Hesitancy Scale

The aim of the study was to develop and validate the Multidimensional Covid-19 Vaccine Hesitancy Scale (CoVaH), a self-report measure to assess the beliefs and attitudes beneath vaccination hesitancy and reasons for vaccine refusal in the context of Covid-19. A sample of 1503 Hungarian respondents filled out the scale. Exploratory and confirmatory factor analysis was conducted to identify latent constructs underlying participants' responses. Findings show a robust three-factor solution for the 15-item CoVaH with high factor loadings on each factor: skepticism, risk perception and fear of Covid-19 vaccine. The CoVaH displayed very good fit indices (KMO = .94, RMSEA = 0.049, CFI = .983) and internal consistencies (α values > .89) and was found to have proper convergent, concurrent and discriminant validity in identifying Covid-19 vaccine hesitancy in the general population. The new scale adds to the literature through the identification of the fear of COVID-19 vaccines, as a newly highlighted explanatory variable of COVID-19 vaccine hesitancy, besides the other formerly identified components. The scale, available in English and Hungarian, allows the assessment of vaccine uptake hesitancy and has the potential to help targeted interventions, considering individual factors that interfere with vaccination acceptance.