Elders are less willing to participate in research studies (Kaye et al., 1990; Sachs, G. and Cassel, C., 1990). For elders who have sensory deficits, the informed consent process may be prolonged and frustrating, thereby reducing participation (Sugarman et al., 1998). Furthermore, some elders refuse to sign, fear the implications of, or are otherwise inexperienced with consent forms, and some may insist that family members be involved in the informed consent process, thereby adding to the efforts of investigators. These factors may frustrate both potential research subjects and investigators and lead to reduced participation (Kaye, J., Lawton, P. and Kaye, D., 1990). Transportation, mobility issues and medical conditions that require frequent attention may reduce participation or cause some elders to drop out of studies (Sachs, G. and Cassel, C., 1990). When recruiting elders for research studies, investigators should consider and address these and other factors that may adversely affect participation.
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