“…Corbie-Smith, Moody-Ayers, & Thrasher, 2004; G. M. Corbie-Smith, 2004; Keyzer et al, 2005; LaVeist, Nickerson, & Bowie, 2000; UyBico, Pavel, & Gross, 2007; Wilets, O’Rourke, & Nassisi, 2003; Wipke-Tevis & Pickett, 2008). The burden of research participation is much heavier on low-income minorities than it is on middle-class Whites (Mattson, Curb, & McArdle, 1985).…”