“…and described SD (Abery, Rudrud, Arndt, Schauben, & Eggebeen, 1995;Deci, 1975;Field, 1996;Field & Hoffman, 1994;Martin & Marshall, 1995;Wehmeyer, Kelchner, & Richards, 1996), recently there is emerging research evidence that documents the effectiveness of interventions to promote SD with different groups of individuals with disabilities Copeland, Hughes, Agran, Wehmeyer, & Fowler, 2002;Powers, Turner, Phillips, & Matuszewski, 2001;Wehmeyer, Palmer, Agran, Mithaug, & Martin, 2000;Zhang, 2001).…”