Hear on the Farm
Several North Dakota farmers are participating in Dr. Marjorie McCullagh's Hear on the Farm study by the University of Michigan.
Active farmers were required to log on to a special website and answer a set of questions that took approximately 10 minutes. Participants were then sent information and hearing protection.
After six months, they will be asked to go to the site again and answer a second set of questions.
At the end of 12 months, they will answer the final set of questions.