“…Many studies have demonstrated that significant intellectual disability is often accompanied by associated impairments that further limit the individual’s adaptive abilities and adversely affect outcomes. The prevalence of these associated impairments correlates with the severity of the intellectual disability (Cascella, 1999; Ferrell, Wolinsky, Kauffman, Flashman, & McAllister, 2004; Fuller & Sabatino, 1998; Jansen, Krol, Groothoff, & Post, 2004; McBrien, 2003; Seager & O’Brien, 2003; Steffenburg, Hagberg, & Kyllerman, 1995; Steffenburg, Hagberg, Viggedal, & Kyllerman, 1995; Sternberg, Taylor, & Babkie, 1994). These associated impairments include cerebral palsy, sensory impairments, seizure disorders, communication impairments, feeding difficulties, behavioral/psychiatric disorders, and attention disorder.…”