In response to the COVID-19 epidemic, HHI faculty sought to understand the socio-behavioral aspects of disease outbreak. Researchers were particularly interested in respondent’s trust in their respective governments and therefore required hundreds or thousands of respondents from specific geographies. Through social media and email marketing as well as paid Facebook advertisements, we were able to recruit over 50,000 survey respondents from over 150 countries. I A/B tested the images below to determine which ad generated the most engagement for a given audience.