Marjorie McCullagh is Professor in the School of Nursing. She holds a PhD in nursing from the University of Michigan and has 20 years of clinical, teaching, and research experience in hearing conservation. Dr. McCullagh’s career has focused on occupational health and safety, particularly as it relates to use of personal protection devices among farm operators and their families. Since 1985 she has had an active program of research in mitigating hazardous occupational exposures. She has conducted several randomized clinical trials, comparing the effectiveness of several approaches to influencing use of personal protective equipment. Dr. McCullagh is an associate professor and Director of the Occupational Health Nursing program at the University of Michigan School of Nursing.