An Integrating PLS-SEM and DEMATEL Based Grey Theory Model to Investigate Individuals’ Vaccination Intention Against COVID-19

The main objective of this study is to comprehensively investigate individuals’ vaccination intention against COVID-19 during the second wave of COVID-19 spread in Vietnam using a two-stages approach.
- Decision-Making Trial and Evaluation Laboratory based on Grey Theory (DEMATEL-G) was employed to explore the critical factors of vaccination intention among individuals.
- Partial Least Squares- Structural Equation Modeling (PLS-SEM) was applied to test the hypotheses of individual behavioral intention to get the vaccine to prevent the outbreak of COVID-19 via Smart-PLS 3.3.3 software.
- A panel data of 661 valid respondents was collected from June 2021 to July 2021 and confidentiality was maintained for all data obtained.