H. Russell Bernard is professor emeritus of anthropology at the University of Florida and a member of the National Academy of Sciences. He is author of Research Methods in Anthropology, Fifth Edition, author of Social Research Methods, and founder and editor of the journal Field Methods. Clarence C. Gravlee is associate professor of anthropology at the University of Florida. He is editor of Medical Anthropology Quarterly and has published in American Anthropologist, Current Anthropology, American Journal of Public Health, Annual Review of Anthropology, and more.