Developing tools for assessing intention to receive the COVID-19 vaccine based on the health belief model

Background: The study was aimed to evaluate the psychometric properties of intention to receive the COVID-19 vaccine using a health belief model. Method The study was a test and tools design study that was conducted in the period from February to March 2020. Questionnaire items were designed using text review. The sampling method was multi-stage. Data were analyzed using descriptive statistics, confirmatory and exploratory factor analysis at 95% confidence level using SPSS software version 16. Results The questionnaire had an appropriate content validity and internal consistency. The 5-factor was extracted and the conceptual model had good fit indices. Cronbach Alpha coefficient was 0.82 and the intra-class correlation coefficient (ICC) was 0.9. Conclusion It can be concluded that the designed instrument had good validity and reliability indicators. The constructs of the health belief model well explain the determinants of the intention to receive the Covid-19 vaccine at the individual level.