“…A study of senior farmers over the age of 60 years determined that many older farmers do not see the necessity or cost benefit to outfitting their tractors with ROPS (Whitman & Field, 1995), even though several studies have shown them to be the farmers at highest risk for a tractor overturn fatality (Fiedler et al, 1998;Gelberg, Struttmann, & London, 1999;Hard, Myers, & Gerberich, 2002;Hayden, Gerberich, & Maldonado, 1995;Meyer, 2005;Mitchell, 1988;Myers & Hard, 1995;Myers et al, 1998). Whitman and Field (1995) concluded that senior farmers perceived operating tractors without ROPS as a moderate risk because their experience as a tractor operator could prevent a serious tractor-related injury.…”