How to convince the vaccine‐hesitant? An ease‐of‐access nudge, but not risk‐related information increased Covid vaccination‐related behaviors in the unvaccinated

Abstract

In this study, we contrast how different benefit and harm information formats and the presence or absence of an ease‐of‐access nudge may facilitate COVID vaccination uptake for a sample of 620 unvaccinated Dutch adults at a timepoint when the vaccine had been widely available for more than a month. Using a 2 × 2 between‐subjects factorial design, we varied the information format on mRNA COVID vaccination statistics (generic text vs. facts box) and an affirmative nudge emphasizing the ease of making a vaccination appointment (absent vs. present). We assessed the acceptance of the vaccination information provided, perceptions on the vaccination, and whether participants directly visited a COVID vaccination appointment website. Whereas the facts box did not significantly affect participants' information acceptance, vaccination attitudes, intentions, and link clicking, the affirmative nudge alongside an online link systematically increased the likelihood of clicking on the link to make a vaccination appointment. A verbal nudge emphasizing the ease of vaccine accessibility is more likely to increase vaccination uptake in an unvaccinated population than informational campaigns on vaccine effectiveness.

Human papillomavirus vaccination and contributing factors of vaccination intention among adolescents and young adults in China from a socio‐ecological perspective: A cross‐sectional study

“…Students with lower general self-efficacy in the present study may more concern about the consequences of HPV infection and thus showed more willingness to get vaccinated. Similarly, a study found a negative correlation between self-efficacy and Covid vaccination intention (Giese et al, 2023). Simultaneously, self-efficacy was a strong predictor of students' willingness to receive HPV vaccine, second only to gender in the logistic analysis.…”