
Senior Fellow
Johnson directed the University of Illinois Chicago's Survey Research Laboratory for 23 years, pioneering research on measurement errors and health patterns in vulnerable groups like immigrants, homeless individuals, and those in criminal justice systems. He spearheaded the American Association for Public Opinion Research's Transparency Initiative, establishing new benchmarks for ethical data practices, and earned the organization's 2023 lifetime achievement award after serving as president. A prolific author of over 150 peer-reviewed articles and editor of five books, his innovations in cross-cultural surveying support policy-driven research organizations throughout South Florida, including Miami-based nonprofits relying on precise public health and opinion data for community initiatives.