Statistical analysis
To calculate an estimated sample size, we assumed the average score on “If given the opportunity to take the COVID-19 vaccine, how likely is it that you would get the vaccine/shot?” in the pre-survey as around 1.5 based on published COVID-19 attitude surveys as of February 2021. We expected our educational intervention would increase the average score for this question on the post-survey to be around 2.0 with the standard deviation of paired difference to be around 1. To achieve 95% power with Alpha = 0.05, we estimated the sample size of 84 to detect medium effect size differences among subgroup means. Frequency distributions were computed for each of the demographic variables. Independent two-sample 