“…The DASH is intended to capture a broad picture of disability across a range of conditions affecting the shoulder, elbow, or hand (Hudak et al, 1996). The World Health Organization's (2001) International Classification of Functioning, Disability and Health (ICF) guided the instrument's development so that items address body function impairment, activity limitations, and participation restriction (Dixon, Johnston, McQueen, & Court-Brown, 2008;Silva Drummond, Ferreira Sampaio, Cotta Mancini, Noce Kirkwood, & Stamm, 2007). The DASH has been subject to extensive psychometric analyses; it has shown good reliability (Raven et al, 2008;Solway et al, 2002), validity (Gummesson, Atroshi, & Ekdahl, 2003;Navsarikar, Gladman, Husted, & Cook, 1999;SooHoo, McDonald, Seiler, & McGillivary, 2002), and responsiveness (Gay, Amadio, & Johnson, 2003;Greenslade, Mehta, Belward, & Warwick, 2004;MacDermid & Tottenham, 2004;Jester, Harth, & Germann, 2005;Kotsis & Chung, 2005) across a variety of orthopedic and neurological upper-extremity conditions (Beaton et al, 2001;Davis et al, 1999;Rosales, Delgado, & Díez de la Lastra-Bosch, 2002).…”