“…In the seminal piece, Stokes and Baer (1977) suggested several approaches, including training sufficient exemplars. This method has been used in instruction for students with severe disabilities in the form of teaching multiple exemplars (Hicks, Bethune, Wood, Cooke, & Mims, 2011;R. H. Horner, Eberhard, & Sheehan, 1986;Knight, Spooner, Browder, Smith, & Wood, 2013).…”