Messages that increase COVID-19 vaccine acceptance: Evidence from online experiments in six Latin American countries
Fig 5
Average effects of vaccine information variants on vaccine willingness.
Each bar depicts a group outcome mean, with the sample size in each group reported below. The outcome in panel (a) is a five-point vaccine willingness scale ranging from “strongly disagree” (1) to “strongly agree” (5); the outcome in panel (b) is an indicator for “agree” or “strongly agree”; the outcome in panel (c) is the (reversed) number of months that a respondent would wait to get vaccinated once eligible for a vaccine; and the outcome in panel (d) is an indicator for a respondent being “somewhat likely” or “very likely” to encourage others to get vaccinated. Error bars denote 95% confidence intervals for treatment effects relative to the control group; the associated p values are from two-sided t tests. The underlying regression specifications for each outcome are described in S3 Appendix and the underlying regression table is reported in S6 Appendix.